The diameter of the base of a cylindrical tank is 28 cm, and its height is 42 cm. Find its curved surface area.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 3696 cm2.
Radius of the base (r) = 28/2 = 14 cm
Curved surface area = 2πrh = 2 × (22/7) × 14 × 42 = 3696 cm2
Hence, the curved surface area of the cylindrical tank is 3696 cm2.