MATHEMATICS · Single correct · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
A cylindrical water tank has radius 5m and height 4m. The tank is open at the top. To find the area of sheet metal required to make the tank, which surface area must be calculated?
(a) Only the curved surface area
(b) Total surface area (curved surface area + two circular bases)
(c) Only the area of the two circular bases
(d) Curved surface area plus one circular base