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प्रश्न
The angle of elevation of the top of a 15 m high tower at a point `15sqrt(3)` m away from the base of the tower is ______.
विकल्प
30°
45°
60°
90°
उत्तर
The angle of elevation of the top of a 15 m high tower at a point `15sqrt(3)` m away from the base of the tower is 30°.
Explanation:
Let the angle be x
So, tan x = `15/(15sqrt(3))`
= `1/sqrt(3)`
`\implies` tan x = tan 30°
So, Angle of elevation = 30°
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