The circumference of the base of a right circular cylinder is 220 cm. If the height of the cylinder is 2 metre, find the lateral surface area of the cylinder?

Let r = radius of base of cylinder
h = height of cylinder = 2 m = 200 cm
circumference of base of cylinder = 2πr2πr = 220r = 2202π = 220 × 72 × 22 = 10 × 72 = 35 cmsso radius of base , r = 35 cmsLateral surface area of cylinder = 2π r h             = 2 × 227 × 35 × 200 = 44 × 1000 = 44000 cm2
 

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