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Q: The angle of elevation of the top of a tower from a point A on the ground is 30o. On moving a distance of 20 m towards the foot of the tower to a point B, the angle of elevation increase to 60o.The height of the tower is-

A. 5√3
B. 15
C. 10√3
D. 20√3
Answer» D. 20√3


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