Question

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

• A. d
• B. 2d
• C. d/2
• D. d²

Answer 1

The correct option is A

d

$Areaofacircle=\pi (radius{)}^2$

Given that,
$\pi (radius{)}^2=\pi d^2$

Therefore, radius = d units.