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JAMB Mathematics 2012 Paper

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Question : 47

Total: 48

A man stands on a tree 150 cm high and sees a boat at an angle of depression of 74°. Find the distance of the boat from the base of the tree.

52 cm
43 cm
40 cm
15 cm

Solution:

$\tan 16 = \frac{x}{150}$

$x = 150 \tan 16$

= $\text{43 cm}$

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