Question

If the radius of a circle is $\frac{7}{\sqrt{\pi }}$ cm, then find the area of the circle (in square cm).

• A. 154
• B. $\frac{49}{\pi }$
• C. 22
• D. 49

Answer 1

The correct option is D

49

Area of a circle of radius $r$
$=\pi r^2$

Area
$=\pi$ x $\frac{7}{\sqrt{\pi }}$ x $\frac{7}{\sqrt{\pi }}=49{cm}^2$