The top(T) of a radio transmission tower was sighted from two small hill tops A and B which were in line with T, the 6) angle of elevation from A to the top of tower was 38°21' and that from B to the top of tower was 21°18'. The angle of elevation from B to a target 3 m above the ground level at A was 1456'. The heights of the theodolite at A and B were 1.80 m and 1.50 m respectively. The horizontal distance between A and B was 150m and the reduced level of B was 121.50m. Calculate the RL of the top of the tower and the horizontal distance from A to the tower.

The top(T) of a radio transmission tower was sighted from two small hill tops A and B which were in line with T, the 6) angle of elevation from A to the top of tower was 38°21' and that from B to the top of tower was 21°18'. The angle of elevation from B to a target 3 m above the ground level at A was 1456'. The heights of the theodolite at A and B were 1.80 m and 1.50 m respectively. The horizontal distance between A and B was 150m and the reduced level of B was 121.50m. Calculate the RL of the top of the tower and the horizontal distance from A to 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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