A video explaining how to caculate angles in polygons. It covers both regular and irregular polygons feature the interior angle sum, interior and exterior angles and finding the number of sides of a regular polygon. This is suitable for both higher and foundation GCSE.
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0:00 Intro
0:10 What is a polygon?
0:32 Regular and Irregular Polygons
1:16 Naming Polygons
2:07 Interior angle sum
8:40 Interior angles of regular polygons
11:39 Exterior angles of regular polygons
14:06 Interior angles plus exterior angles formula
15:40 Finding the number of sides of a regular polygon
17:25 Exam Question 1
19:08 Exam Question 2
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