Circle Area Calculator

This App Allows you to calculate the area,diameter, circumference and sector area of a circle.

A circle is the set of all points in a plane at a fixed distance, called the radius, from a given point, the center.

The Radius of the circle is the distance from the center of the circle outwards. The Diameter of the circle goes straight

across the circle, through the center. The Circumference is the distance once around the circle.