Civil Engineering - Theory of Structures - Discussion

48. 

For determining the support reactions at A and B of a three hinged arch, points B and C are joined and produced to intersect the load line at D and a line parallel to the load line through A at D'. Distances AD, DD' and AD' when measured were 4 cm, 3 cm and 5 cm respectively. The angle between the reactions at A and B is

[A]. 30°
[B]. 45°
[C]. 60°
[D]. 90°

Answer: Option D

Explanation:

No answer description available for this question.

Varsha said: (Aug 29, 2016)  
Please tell me in the detail.

Songita said: (Nov 14, 2016)  
Can anyone explain in detail, please?

Ani said: (Apr 7, 2018)  
It is the Right angle triangle theory for arch.

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