The angle of elevation of a tower from t...

The angle of elevation of a tower from two point which are distance ` h_1 and h_2` from the foot of the tower on the same side are complementary . The height of the tower is

` sqrt( h_1h_2)`

`h_1h_2`

` h_1//h_2`

` sqrt(h_1//h_2) `

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