In a quadrilateral ∠A=110∘,∠B=80∘,∠C=60∘ . Find the fourth angle. ( A ) 120∘ ( B ) 110∘ ( C ) 100∘ ( D ) 130∘
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Answer:
360=110+80+60+X
X=360-250
110 B IS THR RIGHT ANSWERS
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