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Q.

From the top of a building, the angle of elevation of the top of a cell tower is 60º and the angle of depression to its foot is 45º. If distance of the building from the tower is 7m. To find the height of the tower which of the following figure is helpful?

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a

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b

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c

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d

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answer is D.

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Detailed Solution

Angle of elevation of the top of the tower = 60°

Angle of depression of the tower =45°

 Distance =7 cm

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