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MATHEMATICS

JAMB 2019 - Question 1

Mathematics 2019 JAMB Past Questions - Question 1: 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

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Correct Answer

Explanation

tan78=h/60h = 60 tan78h = 60×4.705 = 282.27m? 282m to the nearest whole number.