The angle of elevation of the top of a tree fro... - JAMB Mathematics 2019 Question
The angle of elevation of the top of a tree from a point on the ground 60m away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.
A
148m
B
382m
C
282m
D
248m
correct option: c
\(\tan 78 = \frac{h}{60}\)
\(h = 60 \tan 78\)
\(h = 60 \times 4.705 = 282.27m\)
\(\approxeq\) 282m
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