A) \[{{60}^{{}^\circ }},{{120}^{{}^\circ }},{{60}^{{}^\circ }},{{120}^{{}^\circ }}\]
B) \[{{45}^{{}^\circ }},{{45}^{{}^\circ }},{{135}^{{}^\circ }},{{135}^{{}^\circ }}\]
C) \[{{85}^{{}^\circ }},{{95}^{{}^\circ }},{{85}^{{}^\circ }},{{95}^{{}^\circ }}\]
D) \[{{80}^{{}^\circ }},{{100}^{{}^\circ }},{{80}^{{}^\circ }},{{100}^{{}^\circ }}\]
Correct Answer: A
Solution :
(a): From figure, we can see that \[\angle 1=\angle 3={{60}^{{}^\circ }}\] \[\Rightarrow \angle 2=\angle 4={{120}^{{}^\circ }}.\]You need to login to perform this action.
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