Area of Circle Worksheets

Area of a circle worksheets are helpful in math and geometry. When finding the area of a circle, there is only one formula to learn and you will be able to find the area of any circle presented in the area of a circle math worksheets. Most area of a circle worksheets include finding the perimeter or circumference of the circle.

Formula for area of a circle

In any area of a circle worksheets, you will be required to know the formula of the area of a circle below.

For any circle of radius r, the area of the circle is given by the formula:

Where  is a constant which equals to approximately 3.14.

If you learn this formula for the area of a circle, you will be able to find the area of any circle in any area of a circle worksheets, even when you are presented with tricky area of a circle questions. For example, the question may require you to find the radius r instead of the area of the circle. You will then need to rearrange the equation above for the radius of the circle, as follows.