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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