Question 11

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waecmaths question: 

A regular polygon of n sides has each exterior angle equal to 45o. Find the value of n.

Option A: 

6

Option B: 

8

Option C: 

12

Option D: 

15

waecmaths solution: 

$\begin{align}  & {{45}^{\circ }}n={{360}^{\circ }}\text{   }\!\!\{\!\!\text{ sum of exterior }\angle \text{s }\!\!\}\!\!\text{ } \\ & n=\frac{{{360}^{\circ }}}{{{45}^{\circ }}}=8 \\\end{align}$

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