On the level ground the angle of elevation of the top of a tower is 30 degree angle of elevation becomes 60 degree the height of the tower is the height of the tower is
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On the level ground, the angle of elevation of a tower is 30^(@). On moving 20 m nearer, the angle of elevation is 60^(@). The height of the tower is. ⇒2h=20√3⇒h=10√3.
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