Calculating the size of each exterior angle of regular polygons The formula for calculating the size of an exterior angle of a regular polygon is: \({exterior~angle~of~a~regular~polygon}~=~{ ...

The sum of the interior angles is: All the interior angles in a regular polygon are equal. The formula for calculating the size of an interior angle is: \(\text{interior angle of a polygon} ...

and acute based on their sides and angles. The video also covers the concept of congruency, demonstrating how two triangles can be equal in area. It introduces the formula for calculating the area ...