Area of Circular Segment given Chord Length Calculator

Calculate Area of Circular Segment





Formula

The formula to calculate Area of Circular Segment (A) is:

\[ A = \frac{(2 \cdot \angle Central) - \sin(\angle Central)}{4} \cdot \frac{lc^2}{2 - (2 \cdot \cos(\angle Central))} \]

Where:

Definition

The Area of Circular Segment is the total quantity of plane enclosed by the boundary of a Circular Segment.

The Central Angle of Circular Segment is the angle subtended by the arc of a Circular Segment with the center of the circle from which the Circular Segment is cut.

The Chord Length of Circular Segment is the length of the linear boundary edge of a Circular Segment.

How to calculate Area of Circular Segment given Chord Length

Let's assume the following values:

Using the formula:

\[ A = \frac{(2 \cdot \angle Central) - \sin(\angle Central)}{4} \cdot \frac{lc^2}{2 - (2 \cdot \cos(\angle Central))} \]

Evaluating:

\[ A = \frac{(2 \cdot 3.1415926535892) - \sin(3.1415926535892)}{4} \cdot \frac{10^2}{2 - (2 \cdot \cos(3.1415926535892))} \]

The Area of Circular Segment is 39.2699081698613.

Area of Circular Segment Conversion Chart

Central Angle of Circular Segment (∠Central) Chord Length of Circular Segment (lc) Area of Circular Segment (A)
3 9 29.809740498888154
3 9.5 33.213939259563652
3 10 36.802148764059446
3 10.5 40.574369012375541
3 11 44.530600004511932
3.1 9 31.190485437835065
3.1 9.5 34.752361861291540
3.1 10 38.506772145475388
3.1 10.5 42.453716290386616
3.1 11 46.593194296025224
3.2 9 32.723419484593911
3.2 9.5 36.460353191167911
3.2 10 40.399283314313472
3.2 10.5 44.540209854030607
3.2 11 48.883132810319303
3.3 9 34.426602066162353
3.3 9.5 38.358035018162376
3.3 10 42.501977859459686
3.3 10.5 46.858430590054311
3.3 11 51.427393209946231
3.4 9 36.321649027108066
3.4 9.5 40.469491662919786
3.4 10 44.841542008775392
3.4 10.5 49.437800064674867
3.4 11 54.258265830618221
3.5 9 38.434466760257990
3.5 9.5 42.823587964361529
3.5 10 47.449958963281468
3.5 10.5 52.313579757017820
3.5 11 57.414450345570579
3.6 9 40.796191450629358
3.6 9.5 45.455015782954312
3.6 10 50.365668457567104
3.6 10.5 55.528149474467732
3.6 11 60.942458833656197
3.7 9 43.444396704214597
3.7 9.5 48.405639537720575
3.7 10 53.635057659524186
3.7 10.5 59.132651069625418
3.7 11 64.898419768024269
3.8 9 46.424656677321629
3.8 9.5 51.726237841089841
3.8 10 57.314390959656336
3.8 10.5 63.189116033021108
3.8 11 69.350413061184156
3.9 9 49.792585811507180
3.9 9.5 55.478776166524980
3.9 10 61.472328162354550
3.9 10.5 67.773241798995883
3.9 11 74.381517076449001