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The angle of elevation of the top of a b...

The angle of elevation of the top of a building from the foot of the tower is `30^@` and the angle of elevation of the top of the tower from the foot of the building is `60^@`. If the tower is 50 m high, find the height of the building.

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A pole 5 m high is fixed on the top of a tower. The angle of elevation of the top of the pole observed from a point 'A' on the ground is 60^@ and the angle of depression of the point ‘A’ from the top of the tower is 45^@ . Find the height of the tower

The angle of elevation of the top of a tower from a point on the ground, which is 30 m away from the foot of the tower, is 30^@ . Find the height of the tower.

Knowledge Check

  • A stone dropped from the roof of a building takes 4 s to reach the ground. The height of the building is

    A
    19.6m
    B
    39.2m
    C
    156.8m
    D
    78.4m

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