A) \[{{25}^{o}}\]
B) \[{{70}^{o}}\]
C) \[{{80}^{o}}\]
D) \[{{90}^{o}}\]
Correct Answer: D
Solution :
We know that, angle made on the straight lines is\[{{180}^{o}}.\] \[\therefore \]\[2x+3x+x={{180}^{o}}\Rightarrow 6x={{180}^{o}}\Rightarrow x={{30}^{o}}\] \[\therefore \]\[\angle AOB=3x={{90}^{o}}\] As, \[\angle LOD=\angle AOB\](vertically opposite angles) \[\therefore \]\[\angle LOD={{90}^{o}}\]You need to login to perform this action.
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