【實用教育app】Circle Calculator|最夯免費app-綠色工廠好玩App

A circle is the set of all points in a plane at a fixed distance, called the radius, from a given point, the center. This is a simple application to calculate the area, diameter, circumference of a circle and also area of a sector.

The Circle Formula are Area of Circle = πr², Diameter of Circle = 2r, Circumference of Circle = 2πr = πd, and Area of Sector = πr²(θ/360), where r = radius.