A polygon which has a circumscribed circle is called a cyclic polygonAll regular simple polygons all triangles and all rectangles are cyclic. Calculate the radius of the circumcircle of a regular polygon if given side and number of sides R. Not every polygon has a circumscribed circle.
Let and denote the triangles three sides and let denote the area of the triangle.
The formula for the radius of the circle circumscribed about a triangle circumcircle is given by R a b c 4 A t where A t is the area of the inscribed triangle. Area of Circumscribed circle of polygon calculator uses Circumscribed areaNumber of sidesRadius2tanpiNumber of sides to calculate the Circumscribed area The Area of Circumscribed circle of polygon formula is defined as the area covered by the circle inside a polygon. The length of the circumscribed circles radius is equal to the product of the lengths of the sides divided by 4 times the area of the triangle. In coastal navigation a triangles circumcircle is sometimes.