Question

The area of a circle is $\pi d^2$, then the radius of the circle is $\_\_\_\_$.

• A. $d$
• B. $2d$
• C. $\frac{d}{2}$
• D. $d^2$

Answer 1

The correct option is A

$d$

Area of a circle = $\pi (radius{)}^2$.

Given is $\pi (radius{)}^2=\pi d^2$.

So, radius = d.