Question

A tall tower was photographed from an elevation of 700 m above the datum. The radial distance of the top and bottom of the tower from the principal points are 112.50 mm and 82.40 mm, respectively . If the bottom of the tower is at an elevation 250 m above the datum, then the height (expressed in m) of the tower is

• A. 120.4

Answer 1

The correct option is A 120.4
According to relief displacement,

$d=\frac{r{h}_2}{H-h_1}$






$(112.5-82.40)=\frac{112.5\times h_2}{700-250}$

$h_2=120.40m$

Height of tower is 120.40 m.