7. In a quadrilateral ABCD, ∠D is equal to 150° and ∠A = ∠B = ∠C. Find ∠A, ∠B and ∠C.
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Answer:
a=b=c= 70°
Step-by-step explanation:
d=150°
a=b=c=d=360°
d=150°
a=b=c=210/3
a=b=c=70°
I hope this is right answer
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