Segment of Circle Calculator

Radius (r):
Arc Angle (a):
Segment Area :
Arc Length :
Chord Length :
Segment perimeter :

A segment is the shape formed between the chord and the arc.

1. Area of shaded part = r2 * (a - sin(a)) / 2

2. arc length of shaded part = r * a

3. Perimeter of segment = r * a + chord length

( Note: unit of arc angle is radian )

calculator.cpu.com.cn provides you helpful and handy calculator resources.