The angle of elevation of the top of a tree from a point ...
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.
148m
382m
282m
248m
Correct answer is C
tan78=h60
h=60tan78
h=60×4.705=282.27m
≊ 282m to the nearest whole number.
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