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Question

From the top of tower 100 m height, a man observes two cars on the opposite side of tower with angles of depression 30 and 45respectively. Find the distance between cars.

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Solution

REF.Image.
In ΔBCD
tan45=100BD
BD=100
In ΔACD
tan30=100AD=13
AD=1003
AB=100+1003=100(3+1)=273.2 m

Hence, this is the answer.

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