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 )