In this video, we learn how to calculate interior and exterior angles of convex polygons. The questions are taken from exercise 2a, Book 1 of the New General Mathematics for Senior Secondary Schools. The two major theorems employed in the solution of these problems are:
1. The interior angles in an n-sided convex polygon sum up to (2n - 4)*90 degrees
2. The exterior angles of an n-sided convex polygon sum up to 360 degrees.

0:00 - Introduction
07:06 - Question 1
08:20 - Question 3
10:19 - Question 5
14:47 - Question 7
16:36 - Question 9
20:28 - Question 11
26:54 - Question 13
28:38 - Question 15/17
30:05 - Closing remarks

#planegeometry #parallelograms #interiorandexterioranglecalculation #waec #wassce #newgeneralmaths
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