The angle of elevation of the top of a tree from a point on the ground 6cm away from the foot of the tree is 78°. Find the height of the tree correct to the nearest whole number.

by | Jan 5 | Mathematics WAEC | 0 comments

A. 148m
B. 382m
C. 282m
D. 248m

Correct Answer: Option C
Explanation


tan78 = h/60
h =60tan78
h= 60×4.705 =282.27m
≊ 282m to the nearest whole number.

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