Question

radius of base of cylinder and its height are given find out the curved surface area and total surface area ?

① r= 2.5 cm h = 7 cm​

Answer 1

Answer:

CSA of Cylinder = 2πrh

= 2 *22/7*2.5*7

= 44*2.5

= 110cm

TSA of Cylinder = 2πr(r+h)

= 2*22/7*2.5(2.5+7)

= 44/7*2.5(9.5)

= 44/7*23.75

= 149.285714cm

(hope it helps you)