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WAEC Mathematics 2022 Paper

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Question : 22

Total: 47

A ladder 6m long leans against a vertical wall at an angle 53º to the horizontal. How high up the wall does the ladder reach?

3.611m
4.521m
4.792m
3.962m

Solution:

Sin θ = $\;\frac{\text{opp}}{\text{hyp}}$ → $\;\frac{x}{6}$

cross multiply:

sin53º * 6 = x

0.7986 * 6

4.792m

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