the angle of elevation of the top of the tower from a point on the ground which is 30 M away from the foot of the tower is 30 degree find the height of the tower
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Let hight of the tower be PQ. And the point be on S.
Distance between QS = 30m
tanS = Perpendicular/Height
tanS = PQ/30
1/√3 = PQ/30
30/√3 = PQ
PQ = 10√3
Distance between QS = 30m
tanS = Perpendicular/Height
tanS = PQ/30
1/√3 = PQ/30
30/√3 = PQ
PQ = 10√3
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Step-by-step explanation:
In ∆ ABC,
tan 30° = AB/BC
1/√3 = AB/30
30/√3 = AB
AB = 30/√3
Now, Multiplying numerator and denominator by 3 we get:
AB = 30/√3 × √3/√3
AB = 30√3/3
AB = 10√3
Therefore, the height of the tower is 10√3.
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