calculate the value of x.
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your answer is in the attachment
sorry for the bad handwriting..
hope it will help
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In a triangle , sum of angles = 180
So, angle 1+2+3=180
40+20+y = 180
60+y=180
y=180-60
=120
So, Y = 120
Angle X and Y are linear pair ,
Angle X + Y = 180
X + 120 = 180
X = 180-120
X = 60
So, X value is 60 degrees
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