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Curved Surface Area Of A Cone / Maths Mensuration

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Curved surface area of a cone

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Curved Surface Area Of A Cone / Maths Mensuration

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CONE

Cone is three dimensional solid with circular base and smooth curved surface area.

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CURVED SURFACE AREA
The curved surface area of the cone can be given by finding the area of the sector by using the formula, Area of the sector (in terms of length of arc) = (arc length × radius)/ 2 = ((2πr) × l)/2 = πrl. ∴ The curved surface area of a cone, S = πrl units².
Curved surface area of a cone=πrl.

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Volume and capacity of Cylinder | Concepts explained with practical example | Class 9 Maths

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Volume and capacity of Cylinder | Concepts explained with practical example | Class 9 Maths

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Need a custom math course? Visit http://www.MathHelp.com. This lesson covers volume of a cylinder. Students learn that the formula for the volume of a cylinder is pi times radius squared times height, so the volume of a cylinder that has a radius of 10 feet and a height of 40 feet is pi times 10 squared times 40, or pi times 100 times 40, or 4000 pi cubic feet.

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A quadrilateral is defined as a two-dimensional shape with four sides, four vertices, and four angles. There are two main types: concave and convex. There are also various subcategories of convex quadrilaterals, such as trapezoids, parallelograms, rectangles, rhombi, and squares.

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A rhombus is a special case of a parallelogram. In a rhombus, opposite sides are parallel and the opposite angles are equal. Moreover, all the sides of a rhombus are equal in length, and the diagonals bisect each other at right angles. The rhombus is also called a diamond or rhombus diamond.