Tanisha Pal Singh
5 April 2019
Angles of a Polygon- The sum of the measures of the interior angles of a polygon with n sides is (n- 2) ×180. The sum of the measures of the exterior angles of a polygon is always 360.

Parallelograms- A parallelogram is a simple quadrialteral with two pairs of parallel sides. The opposite sides are equal in measure and opposite angles are equal in measure and consecutive angles are supplementary.
