A vertical photograph of a flat area having an average elevation of 250 metres above mean see level was taken with a camera having a focal length of 20 cm. A section line AB, 250 m long in the area, measures 8.50 cm on the photograph. A tower in the area also appears on the photograph. The distance between the images of top and bottom of tower measures 0.46 cm on the photograph. The distance of the image of the top of the tower from principal axis is 6.46 cm. Determine height of the tower.

A vertical photograph of a flat area having an average elevation of 250 metres above mean see level was taken with a camera having a focal length of 20 cm. A section line AB, 250 m long in the area, measures 8.50 cm on the photograph. A tower in the area also appears on the photograph. The distance between the images of top and bottom of tower measures 0.46 cm on the photograph. The distance of the image of the top of the tower from principal axis is 6.46 cm. Determine height of the tower.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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