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The angle of elevation from a point on the ground, 120 m away from the foot of a tower, is 60° . Find the height of the tower.
Question

The angle of elevation from a point on the ground, 120 m away from the foot of a tower, is 60° . Find the height of the tower.

A.

120/√3 m

B.

100/√3 m

C.

100√3 m

D.

120√3 m

Correct option is D

Given:

Distance from the point to the foot of the tower = 120 m.

Angle of elevation = 60

Formula Used:

tan(θ)=heightbaseheight=tan(θ)×base\tan(\theta) = \frac{\text{height}}{\text{base}} \\ \text{height} = \tan(\theta) \times \text{base}

Solution:

height=tan(60)×120=3×120=1203m\text{height} = \tan(60^\circ) \times 120 = \sqrt{3} \times 120 = 120 \sqrt3 m​​

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