Question

The area of the base of a right circular cylinder is 154 cm
8 cm. Find the curved surface area of the cylinder.
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Answer 1

Answer:

you didn't tell that what is 8 cm but if we take it as height the solution would be :-

area of base = pi × r ²

154 = 22/7 × r ²

154 × 7 = 22 r²

154 ×7 ÷22 = r ²

49 = r ²

7cm = r

CSA of cylinder = 2 pi × r × h

= 2×22÷7 × 7 × 8

= 352 cm ²