From the top of a building h metre high, the angle of depression of an object on the ground has a measure θ. The distance of the object from the building is
A
hcosθ metre
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B
hsinθ metre
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C
tanθ metre
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D
hcotθ
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Solution
The correct option is Chcotθ Height of the building is AB =h metre and the object is located at point C
Now, tanθ=opposite sideadjacent side
tanθ=hadjacent side
We need to find the adjacent side, ⟹adjacent side=htanθ=hcotθ