A) \[{{45}^{{}^\circ }}\]
B) \[{{44}^{{}^\circ }}\]
C) \[{{36}^{{}^\circ }}\]
D) \[{{40}^{{}^\circ }}\]
Correct Answer: A
Solution :
(a): Given \[AB\parallel CD\] and BC is transversal, then \[\angle B+\angle C=180{}^\circ \] \[\Rightarrow \]\[x+y+z={{180}^{{}^\circ }}\] \[\Rightarrow \]\[\frac{4y}{3}+y+\frac{5y}{3}=180\Rightarrow y={{45}^{{}^\circ }}\]You need to login to perform this action.
You will be redirected in
3 sec