An aeroplane is seen at an angle of elevation of 30° from the ground, and the distance between the observer and the plane is 150. The height of the plane is _____?
- 73
- 74
- 75
- None of these
Explanation
Angle = 30°
Hypotenuse (distance) = 150
sin(30°) = height / 150
height = 150 × sin(30°)
= 150 × 0.5
= 75
Last verified on 09-02-2026
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