waecmaths question:
The sum of the interior angles of a regular polygon is 1800o. How many sides has the polygon?
Option A:
16
Option B:
12
Option C:
10
Option D:
8
waecmaths solution:
$\begin{align} & \text{Total angles in a regular polygon is given by (}n-2){{180}^{\circ }} \\ & (n-2){{180}^{\circ }}={{1800}^{\circ }} \\ & n-2=10 \\ & n=12 \\\end{align}$
maths year:
maths topics: