Question

If the radius of a circle is $\frac{7}{\sqrt{\pi }}$, what is the area of the circle (in $c{m}^2$)?

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

Answer 1

Answer: (D)

$49$

Given: Radius of circle $\left(r\right)=\frac{7}{\sqrt{\pi }}$

Area of the circle $=\pi (r{)}^2$

$=\pi \times (\frac{7}{\sqrt{\pi }}{)}^2$

$=\pi \times \frac{49}{\pi }$

$=49c{m}^2$