Question

the radius of base of cylinder is 20cm and height is 13cm find curved surface area

Answer 1

Answer : 1634.28 cm

Given that :

The radius of base of the cylinder = r = 20 cm

and the height = 13 cm

As we know that : curved surface area of cylinder = 2πrh

CSA of Cylinder :

$2 \times \frac{22}{7} \times 20 \times 13 \\ \\ = > 1634.28 \: cm$

So, the curved surface area of cylinder will be 1634.28 cm.