Plz solve these questions
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And the question is: For each triangle below, find the unknown interior angle marked a and the exterior angle marked b.
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Answer:
A)62°+63°+a =180(Angle sum property of triangle)
125+a=180
a=180-125
a=35
a+b=180 (linear pair)
35+b=180
b=180-35
b= 140°
B
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