as3alejandro as3alejandro

19-06-2018
Mathematics

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What is the value of y?

What is the value of y class=

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choixongdong choixongdong

19-06-2018

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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