Hence, the height of the tower is m.
Question: 17
A window of a house is metres above the ground.
From the window, the angles of elevation and
depression of the top and the bottom of another
house situated on the opposite side of the lane are
found to be and respectively. Prove that the
height of the other house is metres.
Solution
Let the window is situated at point L and the angles
of elevation and depression of the top and the
bottom of another house PN be and
respectively.