Question

State true or false.
If the radius of a circle is $\frac{7}{\sqrt{\pi }}$ cm, then the area of the circle in $c{m}^2$ is $\frac{49}{{\pi }^2}$.

• A. True
• B. False

Answer 1

The correct option is B

False

A = $\pi r^2$
$\text{Given r =}\frac{7}{\sqrt{\pi }}cm$

$A=\pi \times \frac{7}{\sqrt{\pi }}\times \frac{7}{\sqrt{\pi }}$

$=49c{m}^2$