Calculate the area, circumference and diameter of Circle (Circle Calculator)
A Circle is a set of points that is formed in a closed loop, every point on which is a fixed distance from a center point. The radius of a circle is the distance from the center of a circle to any point on the circle. The distance across a circle through the center is called the diameter.
Area of Circle = πr²
Diameter of Circle = 2r
Circumference of Circle = 2πr = πd
Area of Sector = πr² (θ/360) = ½ *arc * (angle in degree)
r = radius
π = 3.14