Calculates the area of a sector of a circle.
// Returns 39.26990816987242const area = Chalkboard.geom.sectorA(5, Chalkboard.PI()); Copy
// Returns 39.26990816987242const area = Chalkboard.geom.sectorA(5, Chalkboard.PI());
The radius
The spanned radians
Calculates the area of a sector of a circle.
Example