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Circular segment area

Lecture






  Circular segment area

The area of ​​a circular segment that is not equal to a semicircle is calculated by the formula

  Circular segment area

where α is the degree measure of the corresponding central angle that contains the arc of this circular segment, and SΔ is the area of ​​the triangle with the vertices in the center of the circle and the ends of the radii bounding the corresponding sector. The “-” sign must be taken when α <180 °, and the “+” sign must be taken when α> 180 °.
created: 2014-10-05
updated: 2021-03-13
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Planometry

Terms: Planometry