Find the curved surface area of a cylinder with radius of base 7 cm and height is 9.5 cm.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 418 cm2.
Curved surface area = 2πrh
= 2 × (22/7) × 7 × 9.5
= 2 × 22 × 9.5
= 44 × 9.5
= 418 cm2