Question

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

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

Answer 1

The correct option is C $88c{m}^2$

Given, $r=2$ cm, $h=7$ cm

Then curved surface area $=2\pi rh$

$=2\times \frac{22}{7}\times 2\times 7$

$=88c{m}^2$