Question

find c.s.a. of cylinder formed by turning a square piece of paper whose one of the side is 25cm

Answer 1

Hey friend here is your answer

Curved surface area = area of square as it is folded in such way.

Area of square = ( side )^2

= 25 × 25

= 625cm^2

Therefore CSA of cylinder = 625 cm^2

Hope it helps you.

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