# data[].attributes.body
Find the area of these shapes and master geometry!

# data[].attributes.attachment_link.readable_text
(pi = = 3.141592...)

Area Formulas

Note: "ab" means "a" multiplied by "b". "a²" means "a squared", which is the same as "a" times "a".

Be careful!! Units count. Use the same units for all measurements. Examples

square = a 2

rectangle = ab

parallelogram = bh

trapezoid = h/2 (b ₁ + b ₂)

circle = pi r 2

ellipse = pi r ₁ r ₂

triangle =

one half times the base length times the height of the triangle

equilateral triangle =

triangle given SAS (two sides and the opposite angle)
= (1/2) a b sin C

triangle given a,b,c = [s(s-a)(s-b)(s-c)] when s = (a+b+c)/2(Heron's formula)

NOT CORRECT .... 4 times 6 = 24

CORRECT.... 4 inches is the same as 1/3 feet. Area is 1/3 feet times 6 feet = 2 square feet. (or 2 sq. ft., or 2 ft ²).

regular polygon = (1/2) n sin(360°/n) S ²
when n = # of sides and S = length from center to a corner

Units

Area is measured in "square" units. The area of a figure is the number of squares required to cover it completely, like tiles on a floor.

Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared.

If a square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches. (Square inches can also be written in ².)

Be sure to use the same units for all measurements. You cannot multiply feet times inches, it doesn't make a square measurement.

The area of a rectangle is the length on the side times the width. If the width is 4 inches and the length is 6 feet, what is the area?

# data[].attributes.attachment_link.description
(pi = = 3.141592...) square = a 2 rectangle = ab parallelogram = bh trapezoid = h/2 (b 1 + b 2) circle = pi r 2 ellipse = pi r 1 r 2 triangle = one half times the base length times the height of the triangle equilateral triangle = triangle given SAS (two sides and the opposite angle) = (1/2) a b sin C triangle given a,b,c = [s(s-a)(s-b)(s-c)] when s = (a+b+c)/2(Heron's formula) NOT CORRECT ....

# data[].attributes.body
Symbols are solved the same as one step equations.

# data[].attributes.body
It takes serious math skills to play ball!

# data[].attributes.attachment_link.description
Play this engaging one step equation game that includes some fractions and negative numbers.

# data[].attributes.body
This states that in an algebraic expression, letters can stand for numbers.

# data[].attributes.attachment_link.title
Algebra Basics - Evaluating expressions - First Glance

# data[].attributes.body
This site teaches you how to find the quartiles and plot a box and whisker.

# data[].attributes.attachment_link.description
Math explained in easy language, plus puzzles, games, quizzes, worksheets and a forum. For K-12 kids, teachers and parents.

# data[].attributes.body
Figure out what the value of the letters in the expression are.

# data[].attributes.attachment_link.title
Algebra Basics - Evaluating expressions - First Glance

# data[].attributes.body
A percent is a number or ratio expressed as a fraction of 100.

# data[].attributes.attachment_link.title
Percents: StudyJams! Math | Scholastic.com

# data[].attributes.attachment_link.description
Anytime you use money, you are using decimals. Sometimes, these decimals need to be divided. With this activity, students will learn how to divide decimals.

# data[].attributes.body
Unit Rate is the comparison of two different quantities when they are combined together.

# data[].attributes.attachment_link.title
Solving unit rates problem | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy

# data[].attributes.attachment_link.description
Finding a unit rate is a skill often required in real life. How fast is that plane flying? How many lawns can you mow in an afternoon? You see, with our knowledge of ratios and fractions, we can now solve unit rates problems like this.

# data[].attributes.body
Coordinate Planes

# data[].attributes.attachment_link.title
BrainPOP - Animated Educational Site for Kids - Science, Social Studies, English, Math, Arts & Music, Health, and Technology

# data[].attributes.attachment_link.description
Learn more and understand better with BrainPOP's animated movies, games, playful assessments, and activities covering Science, Math, History, English, and more!

# data[].attributes.body
ARE YOU READY TO RUUUUUMMMMMBLLLLLLLLEEEEE???!!!!!!!!!!!!!!!!!!!!!!!!!

In this game you will learn how to defeat your opponet by using the power of ratio potions

# data[].attributes.attachment_link.description
In this free math game, students make potions using proportions, ratios, fractions, and decimals representing ingredients

# data[].attributes.body
A number's distance from zero. If a number is negative it becomes positive, and if a number is positive it stays positive.

# data[].attributes.attachment_link.title
Absolute value smallest to biggest | Pre-Algebra | Khan Academy

# data[].attributes.body
The Mean is the average of a set of numbers. The Median is the middle value of a set of numbers. The Mode is the most repeated number in a group of numbers. The Range is the  difference between the largest and smallest values.

# data[].attributes.attachment_link.title
Mean, Median, Mode, and Range - BrainPOP

# data[].attributes.attachment_link.description
Tim and Moby in a practical math movie where you can learn how mean, median, mode, and range help you work with sets and data!

# data[].attributes.body
It doesn't matter if its a negative or a positive, as long as it is a whole number it is an integer

# data[].attributes.attachment_link.title
Integers: StudyJams! Math | Scholastic.com

# data[].attributes.attachment_link.description
From temperatures to numbers on the clock, integers are important. This activity will teach students about the roles integers play in the real world

# data[].attributes.body
Steve is interested in finding the perfect volume to build his house!

# data[].attributes.attachment_link.title
XP Math Games – XP Math Games Arcade – eXPerience

# data[].attributes.body
I learned that the Metric System is based on multiplying or dividing powers of ten.

I also learned that a milligram of cocoa will make King Henry EXPLODE!

# data[].attributes.attachment_link.title
The Metric System - Online Math Curriculum - Metric System - Flocabulary

# data[].attributes.attachment_link.description
Teach or review the metric system with Flocabulary's educational rap song and lesson plan.

# data[].attributes.body
GCF is the Greatest Common Factor... LCM is the Least Common Multiple

# data[].attributes.attachment_link.title
GCF & LCM - Online Math Curriculum - Greatest Common Factor - Flocabulary

# data[].attributes.attachment_link.description
Teach or review the Greatest Common Factor and Least Common Multiple with Flocabulary'ss educational rap song and lesson plan.