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UNO [17]
3 years ago
7

What is the value of y?

Mathematics
1 answer:
solong [7]3 years ago
8 0
Sum of interior angles in a triangle = 180
so
2y + y+10 + 50 = 180
3y + 60 = 180
3y = 120
  y = 40

Answer is A. 40
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