Question

Find CSA of cylinder whose circumference is 11cm and its height is twice itz diameter​

Answer 1

77.03 cm²

Explanation:

The appropriate formulas are ...

CSA = Ch . . . . . curved surface area, C=circumference, h=height

where

C = πd

or

d = C/π

__

Here, we have ...

h = 2d = 2C/π

C = 11 cm

so the curved surface area is ...

CSA = (11 cm)(2(11 cm)/π) = 242/π cm² ≈ 77.03 cm²