How To Find The Area Of A Circle
Let's look at the geometric characteristics of a circle.
But first, please review the definition of Area Of Two-Dimensional Shapes.
- The widest length is through the center of the circle.
This length is known as the Diameter of the circle;
In the example, it is shown as "D" in the diameter.
- If you draw a line from the exact center of the diagram
to any edge of the circle, this is called the Radius;
In the example, the radius is shown as "R". Also the radius is half the value of
- To compute the Area Of A Circle,
you will use Pi as part of the formula.
- Special note, the diameter of a Circle must be greater than zero.
Area Of A Circle Formula
Formula = π × radius × radius =
Formula = π × r2