Question

Area of a circle whose radius is $7cm$ is

• A. $164c{m}^2$
• B. $154c{m}^2$
• C. $90c{m}^2$
• D. $100c{m}^2$

Answer 1

The correct option is B

$154c{m}^2$

Given: Radius of the circle, $r=7cm$

Area =$\pi r^2$

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

$=154c{m}^2$