waecmaths question:
A ladder 16m leans against an electric pole. If the ladder makes an angle of 65o with the ground. How far up the electric pole does its top reach
Option A:
6.8m
Option B:
14.5m
Option C:
17.7m
Option D:
34.3m
waecmaths solution:
$\begin{align} & \cos {{65}^{\circ }}=\frac{x}{16} \\ & x=16m\cos {{65}^{\circ }}=6.76m \\ & x\approx 6.8m \\\end{align}$
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