Regular Octagon Area ( related to the circumradius)
Octagon is a polygon that has eight sides.
A regular octagon is a closed figure with sides of the same length and internal angles of the same size. The internal angle at each vertex of a regular octagon is 135°. The area of a regular octagon is related by the length of the circumscribed circle of the octagon
|Ao||Area of the octagon (m2)|