The curved surface area of a cylinder of radius $7$ cm and height $10$ cm is:
Practice this question from Chapter Mock 11: Mensuration, with options and an explanation.
Question
The curved surface area of a cylinder of radius $7$ cm and height $10$ cm is:
Option A
308 sq cm
Option B
396 sq cm
Option C
420 sq cm
Option D — Correct answer
440 sq cm
Correct choice.
Explanation
Curved surface area $=2\pi rh=2\times\frac{22}{7}\times7\times10=440\text{ cm}^2$.