Civil Engineering > GATE 2017 SET-2 > Surveying
Two towers, A and B, standing vertically on a horizontal ground, appear in a vertical aerial photograph as shown in the figure.
The length of the image of the tower A on the photograph is 1.5 cm and of the tower B is 2.0 cm. The distance of the top of the tower A (as shown by the arrowhead) is 4.0 cm and the distance of the top of the tower B is 6.0 cm, as measured from the principal point p of the photograph. If the height of the tower B is 80 m, the height (in meters) of the tower A is _______.
Correct : 89 to 91
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