MATHEMATICS · Single correct · GCSE · Mathematics · Geometry and Measures · Geometry and Measures
Problem
A cylindrical tank is open at the top. It is to be painted only on its outer curved surface. Which surface area should be calculated to estimate the paint required?
(a) Twice the curved surface area (inside and outside)
(b) Curved surface area + area of the bottom
(c) Only the curved surface area
(d) Total surface area (including top and bottom)