Question

If the circumference of base of cylinder is 40cm and the height of cylinder is 5 cm then what is the curved surface area of cylinder?

Answer 1

Answer:

Circumference = 40 cm

Circumference = 2 π r

40 = 22 / 7 * 2 * r

r = 70 / 11

Height of cylinder = 5 cm

CSA = 2 π r h

CSA = 2 * 22 / 7 * 70 / 11 * 5

CSA = 2 * 2 * 10 * 5

CSA = 200 cm^2

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