A) \[\theta =120{}^\circ ,\text{ }\alpha =60{}^\circ \]
B) \[\theta +\alpha =180{}^\circ \]
C) \[\theta =130{}^\circ ,\alpha =50{}^\circ \]
D) \[\theta +\alpha =210{}^\circ \]
Correct Answer: B
Solution :
(b): Not Available
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