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Top of a building was observed at an ang...

Top of a building was observed at an angle of elevation `alpha` from a point. Which is at distance 'd' meters from the foot of the building. Which trigonometrical ratio should be considered for finding height of buildings?

Text Solution

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The correct Answer is:
The trigonometric ratio which connects d and h is `tan alpha`.
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Knowledge Check

  • From the top of a tree, a man observes the angle of deppression of a point which is at distance of 40 metres from the foot is 75^(@) . The height of the tree is

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    C
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    D
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  • The angles of elevation of a tower from two points which are at distances h_1 and h_2 from the foot of the tower on the same side are complementary. The height of the tower is

    A
    `sqrt(h_1 h_2)`
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