Question 50

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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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