Find in sexagesimal and circular units of an internal angle of a regular pentagon.

Find the circular measure of an internal angle of a regular : pentagon .

The circular value of each internal angle of a regular hexagon is

Find the circular measure of an internal angle of a regular : hexagon .

Symmetry of a regular pentagon.

Find each interior of a regular pentagon.

Find the circular measure of an interior angle of a regular n-gon.

Find the circular mesure of an internal angle of a regular: (i) pentagon (ii) hexagon (iii) polygo of 40 sides.

Find the circular measure of an internal angle of a regular : polygon of 40 sides.

Find the radians the interior angle of a regular pentagon.

Lines of symmetry of a regular pentagon