Question

If TSA of a cylinder is 132cm2 and whose radius is 21cm then find CSA of cylinder​

Answer 1

Answer:

hey mate.. here's your answer:

TSA : 2πh( h+r) = 132

2 x 22/7 x h ( h + 21 ) =132

h(h+21) = 132 x 7/ 2x 22

After finding "h", substitute in the formula of csa.

CSA is 2πrh.

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Answer 2

CSA of cylinder = 2πrh

= 2×

7

22

×14×21 = 1848 sq. cm