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What is the value of y
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5 votes
What is the value of y

What is the value of y-example-1
User Aliz
by
6.6k points

2 Answers

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sum of interior angles in a triangle = 180
so
y + y - 12 + 56 = 180
2y + 44 = 180
2y = 136
y = 68

Answer
C. 68°
User Zetki
by
5.8k points
3 votes
if you isolate y from the equation y+(y-12)+56=180 (adding all the angles together to make 180), you would get 68 degrees
User Phil Gyford
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6.2k points
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