Mathematics, 25.09.2021 14:00 sonyav732

from the bank of the river the top of a building just on the opposite bank is observed to have an angle of elevation of 45° . On walking 50m from the bank perpendicular to its edge the angle of elevation of its tops becomes 30°.find the height of the building.

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from the bank of the river the top of a building just on the opposite bank is observed to have an an...