A balloon is hovering 100 m above ground. The angle of elevation of the balloon from a point on the ground is 60°. Find its horizontal distance from the observer.
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Correct answer: D
Explanation
Height = 100 meters
angle = 60°
According to the formula:
tanθ = height / distance
tan60° = 100 / x
√3 = 100 / x
x = 100 / √3
= 100√3 / 3
=57.7 meters