Math Worksheets

Posts Tagged ‘formula of the area of a circle’

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.