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we use spheres for any type of ball for sports and 

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we use spheres for any type of ball for sports and 

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we use spheres for any type of ball for sports 

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we use spheres for any type of ball for sports 

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volume - length times width times  height.

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volume - length times width times  height.

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Perimeter - there is no exact formula.

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Volume is used in science with liquids, gases, solids,.

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An object shaped like a cone is said to be conical

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a round solid figure, or its surface, with every point on its surface equidistant from its center.

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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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Traffic safety cone, icecream cone, pencil tip,

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We use cubes for boxes and ice cubes and for toys like the rubrics cubes  

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We use cubes for boxes and ice cubes and for toys like the rubrics cubes  

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To find the perimeter of a rectangle you do length plus length and width plus width , to find the area 

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To find the perimeter of a rectangle you do length plus length and width plus width , to find the area 

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you just multiply it's length times it's width. To find the volume of a rectangle you do side 1 times side 2 times side 3.

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solid 2 dimesonal shape with 6 faces that are rectangles .

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Marbles, oranges, bubbles, and beach balls - all of these objects illustrate the shape of a , or globe (unless the beach balls are under-inflated, in which case they're sort-of a "squished- sphere " shape).

Sphere is often used metaphorically to refer to a particular aspect or area of something. For example, unless you're a trained circus performer, tightrope walking and fire swallowing probably lie outside of your sphere of expertise. Sphere frequently occurs in the phrase "sphere of influence," which designates the geographical area over which a person, organization, or nation has control. In many households, whoever is in charge of the cooking controls the kitchen; so, the kitchen falls within his or her sphere of influence.

n a three-dimensional closed surface such that every point on the surface is equidistant from the center

n any spherically shaped artifact

Types:

globe

a sphere on which a map (especially of the earth) is represented

celestial globe

a globe that is a spherical model of the heavens

n a solid figure bounded by a spherical surface (including the space it encloses)

n a particular aspect of life or activity

n the geographical area in which one nation is very influential

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Marbles, oranges, bubbles, and beach balls - all of these objects illustrate the shape of a , or globe (unless the beach balls are under-inflated, in which case they're sort-of a "squished- sphere " shape). Sphere is often used metaphorically to refer to a particular aspect or area of something.

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Trapezoid's  are used in real life in architecture, and in bridges, and construction. 

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Trapezoid's  are used in real life in architecture, and in bridges, and construction. 

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Cylinder definition, a surface or solid bounded by two parallel planes and generated by a straight line moving parallel to the given planes and tracing a curve bounded by the planes and lying in a plane perpendicular or oblique to the given planes. See more.

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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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a four-sided plane rectilinear figure with opposite sides parallel.

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What is cube - Definition and Meaning - Math Dictionary

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Learn what is cube? Definition and meaning on easycalculation math dictionary.

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Also found in: Thesaurus, Financial, Encyclopedia, Wikipedia.

rec·tan·gle
(rĕk′tăng′gəl)
n.

A four-sided plane figure with four right angles.

[French, from Medieval Latin rēctangulum, a right triangle, from Late Latin rēctiangulum : Latin rēctus, right; see reg- in Indo-European roots + Latin angulus, angle.]

rectangle
(ˈrɛkˌtæŋɡəl)
n

(Mathematics) a parallelogram having four right angles. Compare rhombus

[C16: from Medieval Latin rectangulum, from Latin rectus straight + angulus angle]

rec*tan*gle
(ˈrɛkˌtæŋ gəl)

n.

a parallelogram having four right angles.

[1565-75; < Medieval Latin rēct(i)angulum, n. use of neuter of Late Latin rēctiangulus having a right angle = rēcti- recti- + -angulus, adj. derivative of Latin angulus angle ¹]

rectangle

To calculate the area of a rectangle, multiply the length by the width. A rectangle with a length of 10 feet and a width of 5 feet has an area of 50 square feet.

rec·tan·gle
(rĕk′tăng′gəl)

A four-sided plane figure with four right angles. A rectangle whose sides are equal is a square.

Noun 1.

rectangle - a parallelogram with four right angles

foursquare, square - (geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon; "you can compute the area of a square if you know the length of its sides"

parallelogram - a quadrilateral whose opposite sides are both parallel and equal in length

box - a rectangular drawing; "the flowchart contained many boxes"

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Link to this page:

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Also found in: Thesaurus, Financial, Encyclopedia, Wikipedia. (rĕk′tăng′gəl) n. A four-sided plane figure with four right angles. [French, from Medieval Latin rēctangulum, a right triangle, from Late Latin rēctiangulum : Latin rēctus, right; see reg- in Indo-European roots + Latin angulus, angle.] (ˈrɛkˌtæŋɡəl) n (Mathematics) a parallelogram having four right angles.

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Rectangles are usually  chacterized by height and width. The height and width of a rectangle is usually different. Two  opposite sides of a rectangle will be equal in length and parallel to each other. It is a four sided polygon. It's a flat shape with straight sides

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Rectangles are usually  chacterized by height and width. The height and width of a rectangle is usually different. Two  opposite sides of a rectangle will be equal in length and parallel to each other. It is a four sided polygon. It's a flat shape with straight sides

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rectangular prism picture - Google Search

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Square Facts for Kids - Interesting Information about Squares

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Check out our square facts for kids and learn some interesting information about this regular quadrilateral. Find out how to find the area and perimeter of a square, how many lines of symmetry square has, what the internal angles of a square add to and much more.

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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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tri·an·gle
(trī′ăng′gəl)
n.
1.

a. The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon.

b. Something shaped like such a figure: a triangle of land.

2. Any of various flat, three-sided drawing and drafting guides, used especially to draw straight lines at specific angles.

3. Music A percussion instrument consisting of a piece of metal in the shape of a triangle open at one angle.

4. A relationship involving three people, especially a ménage à trois.

[Middle English, from Old French, from Latin triangulum, from neuter of triangulus, three-angled : tri-, tri- + angulus, angle.]

triangle
(ˈtraɪˌæŋɡəl)
n

1. (Mathematics) geometry a three-sided polygon that can be classified by angle, as in an acute triangle, or by side, as in an equilateral triangle. Sum of interior angles: 180°; area: base × height

2. any object shaped like a triangle

3. any situation involving three parties or points of view. See also eternal triangle

4. (Instruments) music a percussion instrument consisting of a sonorous metal bar bent into a triangular shape, beaten with a metal stick

[C14: from Latin triangulum (noun), from triangulus (adjective), from tri- + angulus corner]

tri*an*gle
(ˈtraɪˌæŋ gəl)

n.

1. a closed plane figure having three sides and three angles.

2. a flat triangular piece with straight edges, used in connection with a T square for drawing perpendicular lines, geometric figures, etc.

3. any three-cornered or three-sided figure, object, or piece: a triangle of land.

4. a musical percussion instrument that consists of a steel triangle, open at one corner, that is struck with a steel rod.

6. a situation involving three persons, esp. one in which two of them are in love with the third.

[1350-1400; Middle English < Latin triangulum, n. use of neuter of triangulus three-cornered. See tri-, angle ¹]

triangle

The area (A) of a triangle can be calculated using the following formula: A = ¹/ ₂ bh.

tri·an·gle
(trī′ăng′gəl)

A closed geometric figure consisting of three sides.

Triangle
a set of three.

Example: long wavering triangle of waterfowl, 1895.

Want to thank TFD for its existence? Tell a friend about us, add a link to this page, or visit the webmaster's page for free fun content.

Link to this page:

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(trī′ăng′gəl) n. 1. a. The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon. b. Something shaped like such a figure: a triangle of land. 2. Any of various flat, three-sided drawing and drafting guides, used especially to draw straight lines at specific angles.

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Parallelogram - math word definition - Math Open Reference

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circles are used in everyday life with geometry and Astronomy, bakers use circles , car makers.  

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circles are used in everyday life with geometry and Astronomy, bakers use circles , car makers.  

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Plastic Circle Cuts 48.01" - 60.00" Diameter

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Plexiglass Acrylic Sheets Crystal Clear Plexiglass Bronze & Gray Clear & Color Mirror Frosted Plexiglass Textures, Non-Glare, & Frost Transparent Plexiglass Colors Translucent Plexiglass Colors Black & White Plexiglass Fluorescent & Exotic Plexiglass Abrasion Resistant Plexiglass UV Filtering Plexiglass Infrared Transmitting Acrylic Glitter and Pearl

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The area is the inside shape or space measured in square units. In rectangles and in squares,

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The amount of 3-dimensional space something takes up.

Imagine how much water could be in it.

Also called Capacity.

In this example the volume is 10 × 4 × 5 = 200 units ³

Units of volume include:
* Metric: cubic centimeters (cm ³), cubic meters (m ³), liters
* US Standard: fluid ounce, cubic inch, cubic foot, pints, gallons

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The amount of 3-dimensional space something takes up. Imagine how much water could be in it. Also called Capacity.

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Rectangles can be seen all over the place in everyday life.

From the letterbox that your mail comes through to the kitchen table you eat your breakfast on - the rectangle is a pretty common (and important) shape.

Uses of rectangles
As defined by Euclidean geometry, a rectangle is a 4-sided shape with 4 right angles.

At a glance, rectangles are pretty much everywhere in our lives.

However, in real-life, even a piece of paper has three dimensions, and is therefore more accurately described as a rectangular prism.

Pedantry aside, you can find a million and one different uses for rectangles in everyday life.

For example:

Computer screen.

Boxes.

Paper.

Mouse pad.

TV Screen - The dimensions of images are more accurately displayed in a rectangular shape.

Books- A rectangular shaped book is easier to hold and flick through.

Dollar bills

Toast - wouldn't fit into a toaster unless it was a rectangle (although this begs the question 'what came first, the toast or the toaster?').

A football field.

What other rectangular shapes can you think of?

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How Are Rectangles Used In Everyday Life?

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Answer (1 of 7): Rectangles can be seen all over the place in everyday life.

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basic picture of a circle - Google Search

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Example:

These shapes all have the same area of 9:

It helps to imagine how much paint would cover the shape.

Area of Simple Shapes

There are special formulas for certain shapes:

Example: What is the area of this rectangle?

The formula is:

The width is 5, and the height is 3, so we know w = 5 and h = 3:

Area = 5 × 3 = 15

Learn more at Area of Plane Shapes.

Area by Counting Squares

We can also put the shape on a grid and count the number of squares:

The rectangle has an area of
15

Example: When each square is 1 cm on a side, then the area is (15 square cm)

Approximate Area by Counting Squares

Sometimes the squares don't match the shape exactly, but we can get an "approximate" answer.

One way is:

Like this:

This pentagon has an area of approximately 17

Or we can count one square when the areas seem to add up.

Example: Here the area marked " 4" seems equal to about 1 whole square (also for " 8"):

This circle has an area of approximately 14

But using a formula (when possible) is best:

Example: The circle has a radius of 2.1 meters:

The formula is:

Where:

The radius is 2.1m, so:

So the circle has an area of 13.85 square meters (to 2 decimal places)

Area of Difficult Shapes

We can sometimes break a shape up into two or more simpler shapes:

Example: What is the area of this Shape?

Let's break the area into two parts:

Part A is a square:

Part B is a triangle. Viewed sideways it has a base of 20m and a height of 14m.

So the total area is:

Area by Adding Up Triangles

We can also break up a shape into triangles:

Then measure the base ( b) and height ( h) of each triangle:

Then calculate each area (using Area = ½b × h) and add them all up.

Area by Coordinates

When we know the coordinates of each corner point we can use the Area of Irregular Polygons method.

There is an Area of a Polygon by Drawing Tool that can help too.

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These shapes all have the same area of 9: It helps to imagine how much paint would cover the shape. There are special formulas for certain shapes: The formula is: The width is 5, and the height is 3, so we know w = 5 and h = 3: Area = 5 × 3 = 15 Learn more at Area of Plane Shapes.

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ring, halo; a closed plane curve every point of which is equidistant from a fixed point within the curve; the plane surface bounded by such a curve... See the full definition

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Enjoy a range of free pictures featuring polygons and polyhedrons of all shapes and sizes, including simple 2D shapes, 3D images, stars and curves before heading over to our geometry facts section to learn all about them.

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A cone is a solid that has a circular base and a a single vertex.

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It can apply to circumference,area,volume

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Cylinders can hold up home's.

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How we use a rectangular prism in the world

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How we use a rectangular prism in the world

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We can use it in orgami

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paper model of a rectangular prism (cuboid)

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A quadrilateral with only one pair of parallel sides.

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How we use a parallelogram in real life.

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How we use a parallelogram in real life.

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We use in parking-lots. Like if they don't won't you to park they paint a parallelogram.like on the picture.

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Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

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It can apply to perimeter,area,and volume

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Square is a four sided shape with four right angles.

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How we use a triangle in the real world.

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How we use a triangle in the real world.

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The architects use it on roofs so the snow won't cave in the house

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Why do architects use triangles when building bridges, roofs on houses, and other structures? Why not a quadrilateral, why not a pentagon? If there is a single most important shape in engineering, it is the triangle. Unlike a rectangle, a triangle cannot be deformed without changing the length of one of its sides or breaking one of its joints.

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Circumference is used in the real world, Like for example car makers use circumference to find the size of tires. Bakers use to make pies, military engineers , aircraft engineers. 

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Circumference is used in the real world, Like for example car makers use circumference to find the size of tires. Bakers use to make pies, military engineers , aircraft engineers. 

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Circumference Calculator

The following calculator finds the circumference based on the radius of a circle. The π value being used in rounded to 3.14. Type the value in the radius field and press the '"' button.

The smallest distance around the circle is called circumference and it can be calculated if the radius is known. The popular equation requires the diameter to be known, which in turn in always double the radius. Therefore the calculation is always an equation with one unknown:

Calculation Background

Solving the mathematical equation is usually the solution to most of the problems faced by the math students. However in the real life other practical methods exist to find the circumference of a circle. Imagine finding yourself in the need of calculating the circumference of a circular ring. Obviously it would be difficult to find the exact radius or diameter of such and object. In this case the simple solution is to make a mark on the ring and place it so that the mark touches the floor. Then we place another mark on the floor in the exact place where we have the mark on the ring. Next it is enough to roll the ring to the point when in makes the full revolution and the mark ends directly on the floor again. We make another mark in that place on the floor. Now we can simply calculate the distance between the two marks on the floor using simple tape measure. This distance will be equal to the circumference of the given ring. Rolling the ring we have to make sure the ring does not slide as this would falsify the result of the measurement.

There are plenty of real life situations when this sort of calculation comes handy. The simple example is how you could figure out how much wrapping paper is needed to wrap some circular object: a bottle, a rolled slipping bag. Or how long of a ribbon you need to put around a football. Understanding the principle of calculating the circumference of a circle is crucial to comprehend how speedometers work, whether it is in a car or in a bicycle. If you are a little bit of a handyman you might in the past mounted a speedometer on your bike. You may remember that it is always necessary to make a basic setup so that the device shows the speed correctly. Usually except from attaching the device to the crossbar it is required to select the size of the bike's wheel. This size is typically indicated on the tire itself in some sort of standardized notation. This notation obviously carries the huge significance to the digital meter as it will be used to calculate what is the distance the bike covers with one wheel revolution. The sensor on the crossbar detect every full revolution and send in to the meter that additionally keeps time. Knowing the distance that has been covered and the time it took the meter calculates the speed using the simple equation: speed = distance / time. If we take the distance in miles and time in hours we will get the speed in MPH.

An interesting observation is that if the diameter of a circle is equal 1, its circumference is exactly the π value, namely 3.14.

Let's have a look at several examples of the formula application. The following two simple exercises put the theory in the practical use and hopefully will help to clear any uncertainty that you still may have.

Exercise 1: Calculate the circumference of a circle with a radius of 4 inch.

Solution: Using the standard equation the circumference is calculated in the following manner:

circumference = 2 * π * radius

Let's replace the variables with the values:

radius = 4
π = 3.14(the value has been approximated to two decimal digits)
circumference = 2 * 3.14 * 4
circumference = 25.12 inch

Therefore using the usual equation we have calculated the result of the exercise to be 25.12 inches. Obviously the result is always in the same units as the radius is given; the radius has been given in inches so the result is expressed in inches as well. If the radius was expressed in meters the result will be in meters and so on.

Exercise 2: The circumference of a circle equals 10 meters. How long is the diameter of that circle?

Solution: Solving this exercise requires to turn the equation around as the circumference is the known factor while the diameter is the unknown we need to find. As it has been said before the diameter is double the length the radius. Therefore we will use the following two equations to solve the exercise:

circumference = 2 * π * radius
diameter = 2 * radius

We can see that both equations contains 2 * radius. Therefore using the fact that 2 * radius equals the diameter from the second equation we can substitute that part in the first equation to achieve:

circumference = π * diameter

Because it is the diameter we are searching for we need to transform the equation to:

diameter = circumference ÷ π

Let's replace the variable with the known values:

diameter = 10 ÷ 3.14
diameter = 3.18 m (approximated to 2 decimal places)

Transforming the original equation we calculated that the diameter of the circle with circumference of 10 meters is 3.18 meters. Obviously knowing that we can easily find the radius of that circle as it is exactly a half of its diameter: 1.59 meters.

As you can see from the given examples calculating circumference of a circle is a pretty simple task as it requires only a straightforward multiplication. The only uncertainty may arise with regards to the π value, as not being able to use the exact value we always have to use some sort of its approximation. However in most of the appliances rounding the value to 3.14 is sufficient.

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The following calculator finds the circumference based on the radius of a circle. The π value being used in rounded to 3.14. Type the value in the radius field and press the '"' button. The smallest distance around the circle is called circumference and it can be calculated if the radius is known.

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Area is used in construction, carpentry.

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Architects use perimeter to measure buildings .

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Architects use perimeter to measure buildings .

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Circle

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Circle - Math word definition - Math Open Reference

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Volume represents a measurement of space or a container's capacity for liquids, as differentiated from mass.

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Perimeter is the outline length of a shape .It is the sum of all lengths of an entire figure. It is the outer edge of a geometric figure. The perimeter of a circle is called Circumference. It is a one dimensional measurement.

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Irregularly shaped regions can have very large perimeters relative to their area. In fact, rectangles with an area of 100 units 2 can vary in perimeter from as small as 40 units (each side of 10 units) to virtually infinite, if its length is virtually infinite and its width is infintesimal.

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Mr. Hui's XP Math features free math games aligned to Common Core State Standards: Number Sense and Operations, Algebra, Geometry, Measurement, and Data Analysis and Probability.

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Its distance around the circle

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The perimeter is the total distance around a figure.