2019
Mathematics
JAMB
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.
148 m
B.
382 m
C.
282 m
D.
248 m
Correct Answer: 282 m
Explanation
tan78 = h/60 h = 60tan78 h = 60 × 4.705 = 282.27m ≊ 282m to the nearest whole number.
tan78 = h/60 h = 60tan78 h = 60 × 4.705 = 282.27m ≊ 282m to the nearest whole number.THIS WEEK's
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