the angle of elevation of the top increases by 15°. Find the height of the tower.

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The angle of elevation of the top of a tower from certain point is 30°. If the observer moves 20 metres towards the tower, the angle of elevation of the top increases by 15°. Find the height of the tower.
25
Nov
The angle of elevation of the top of a tower from certain point is 30°. If the observer moves 20 metres towards the tower, the angle of elevation of the top increases by 15°. Find the height of the tower. the angle of elevation of the top increases by 15°. Find the height of the [...]
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