Question

If the perimeter and the area of a circle are numerically equal, then the radius of the circle is _____.

• A. 2 units
• B. $\pi$ units
• C. 4 units
• D. 7 units

Answer 1

The correct option is A

2 units

Perimeter of circle = $2\pi r$

Area of circle = $\pi r^2$

Given,perimeter and the area of a circle are numerically equal

Hence,

$2\pi r=\pi r^2$

r = 2 units