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Standard : IX 
Unit : POLYGONS 
Topic : Sum of interior angles
The geometric shapes having equal number of 
sides and angles are called polygons
Polygon Sum of angles
Polygon Sum of angles
5400 1800 540-180=3600 
7200 3600 720-360=3600 
9000 5400 900-540=3600 
10800 7200 1080-720=3600
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