Question

What is the area of a circle with radius r?

• A. $\pi r^2$ sq. units
• B. $2\pi r^2$ sq. units
• C. $4\pi r^2$ sq. units
• D. $6\pi r^2$ sq. units

Answer 1

The correct option is A

$\pi r^2$ sq. units

The area of a circle is equal to the entire space inside a circle's circumference.
Area of the circle of radius 'r' is given by πr².