Question

If the radius of the base of a cylinder is $2$ cm and its height $7$ cm, then its curved surface is

• A. $44c{m}^2$
• B. $22c{m}^2$
• C. $88c{m}^2$
• D. $56c{m}^2$

Answer 1

Answer: (C)

$88c{m}^2$

Given, radius of cylinder $=2$ cm and height of cylinder $=7$ cm
$\therefore$ curved surface area of cylinder $=2\pi rh$
$=2\pi \times 2\times 7$
$=88c{m}^2$