Q. 495.0( 1 Vote )

# The diameter of a

Given: Diameter of the base of a cylinder is 28 cm.

Its height is 20 cm.

Volume of the Cylinder is given by: 2πr(r + h). (here r and h are radius and diameter respectively)

Let S be the Surface area of the cylinder.

V = 2πr(r + h)

S = 2 × π × () × [() + 20] ( 28 is the diameter and is the radius)

V = 2 × π × 14 × (14 + 20) = 2 × π × 14 × 24

V = 2992 cm2

The Surface area of the cylinder is 2992 cm2

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