Depression to the foot of a building across the street

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From the top of a 30ft building, the angle of depression to the foot of a building across the street is 70 degrees and the angle of elevation to the top of the same building is 71degrees( how tall is he building across the street ?)

Reference no: EM13554750

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Depression to the foot of a building across the street : From the top of a 30ft building, the angle of depression to the foot of a building across the street is 70 degrees and the angle of elevation to the top of the same building is 71degrees( how tall is he building across the street ?)
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