<XYA is an exterior angle of ∆ XYZ . If < XYZ=60° . then <XYA=______ (A)60° (B) 50° (C) 30° (D) 120°
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Answer:
(D)120
Step-by-step explanation:
angle1+angle2=180(supplement angle)
60+x=180
so x=120
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