Question

Find the height of a cylinder whose radius is 7cm and the total surface area is 968 cm^2.

Answer 1

TSA of cylinder=2pie r (r+h)
TSA=968

2*22/7*7(7+h)=968
2*22(7+h)=968

(7+h)=968/44
7+h=22
h=22-7
=15 cm