WAEC - Mathematics (2020 - No. 28)
Each interior angle of a regular polygon is 168\(^o\). Find the number of sides of the polygon
30
36
24
18
คำอธิบาย
Exterior angle = 180\(^o\) - 168\(^o\)
Number of sides = \(\frac{360^o}{12}\)
= 30\(^o\)
Exterior angle = 180\(^o\) - 168\(^o\)
Number of sides = \(\frac{360^o}{12}\)
= 30\(^o\)