Question

The diameter of the base of a right circular cylinder is 14cm and it's height is 20cm.Then it's curved surface area is.....

Answer 1

r = 7 cm
2πr*h = 880 cm^2

Answer 2

Hola!!

here's your answer:

Given:
Diameter = 14 cm
therefore radius = 14/2
height = 20cm

To find:
CSA of cylinder

Solution:
CSA = 2πrh
CSA = 2×22/7×14/2×20
CSA = 22×2×20
CSA = 880cm^2

hope this helps ☺️