the angle of elevation of the top of a tower from a point a on the gro | Examsbook

516

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

1
5√3
2
15
3
10√3
4
20√3

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Answer : 3. "10√3"

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