Which area should be calculated to know how much paint is needed to cover only the…
MATHEMATICS · Single correct · CBSE · Mathematics · Surface Areas and Volumes · GCSE
Problem
Which area should be calculated to know how much paint is needed to cover only the curved surface of a cylindrical water tank of radius 2 m and height 3 m?
(a) A=2πr(h+r)
(b) A=πr2
(c) A=2πrh
(d) A=πrh