Question

the C.S.A of a cylinder is 440sq cm and its height is 10 cm.what is its base area.

Answer 1

CSA=440sq cm
Height=10cm
we know CSA of cylinder=2πrh
440=2*22/7*r10
440*7/22*2*10=r
7=r
Base area= πrsq
=22/7*7*7=154