# SURFACE AREA AND VOLUME OF 3D SHAPES

## CUBE

In Geometry, a Cube is a solid three-dimensional figure, which has 6 square faces, 8 vertices and 12 edges. Volume of cube = a3

Lateral surface area = 4a2

Total surface area = 6a2

To find side length of cube from the diagonal, we use the formula

Side length = a√3

## RECTANGULAR PRISM

In geometry, a rectangular prism can be defined as a 3-dimensional solid shape which has six faces that are rectangles. A rectangular prism is also a cuboid. Lateral surface area = 2h(l + w)

Total surface area = 2(lw + wh + hl)

Volume = length x width x height

## TRINAGULAR PRISM Lateral surface area = ph

p = Perimeter of the triangle and h = height of the prism

Total surface area = ph + 2B

B = Base area of triangular prism

Volume = Base area x height

## CYLINDER

A cylinder is a three dimensional solid that holds two parallel bases joined by a curved surface at a fixed distance. Lateral surface area of cylinder = 2πrh

Total surface area = 2πr(h + r)

Volume of cylinder = πr2h

## PYRAMID

pyramid is a 3D polyhedron with the base of a polygon along with three or more triangle-shaped faces that meet at a point above the base

Surface area of pyramid = Area of all faces

Volume = (1/3) x base area x height    ## SPHERE Formula for surface area of a sphere,

S = 4πr²

Formula for volume of a sphere

V = (4/3)πr³

(where r is the radius of the sphere)

## CONE Formula for surface area of a cone,

Lateral surface area  = πrl

Total surface area = πr(l + r)

Formula for volume of a cone

V = (1/3)πrl

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