Area of Circle Formula

Area of Circle

The area of a circle is given by the number π (pi) multiplied by the radius of the circle squared.

Examples

Area of Circle given Radius of One

Area of Circle Given Radius of One Example

To calculate the area of a circle given a radius of one, set up the equation for the area of the circle and substitute the value of the radius into the equation.

Area of Circle given Radius of Two

Area of Circle Given Radius of Two

To calculate the area of a circle given a radius of two, set up the equation for the area of the circle and substitute the value of the radius into the equation.

Area of Circle given Radius of Three

Area of Circle Given Radius of Three

To calculate the area of a circle given a radius of three, set up the equation for the area of the circle and substitute the value of the radius into the equation.