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.

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: Answer is C

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

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