Nil

2. Standard : IX
Unit : POLYGONS
Topic : Sum of interior angles

3. The geometric shapes having equal number of
sides and angles are called polygons

4. Polygon Sum of angles

5. Polygon Sum of angles

6. 5400 1800 540-180=3600
7200 3600 720-360=3600
9000 5400 900-540=3600
10800 7200 1080-720=3600