Question

find the value of unknown​

Answer 1

y=30 degree

x+2x+y=180

3x=150

x=50degree

2x=100degree

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Answer 2

y= 30°{vertically opposite angle

2x+X = 150°(exterior angle property)

or 2x+x+y=180°(angle sum property)

3x=180-30

3x=150°

X= 50°

2x=100°