pls tell me fast ss guys
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refer to the image for solution hope it will help you
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Step-by-step explanation:
We know that
x+y+w+z=360 degree (sum of all angles round a point is 360 degree)
(x+y)+(x+y)=360 degree (given x+y=w+z)
2(x+y)= 360 degree
(x+y)=360 degree/2
x+y= 180 degree
Since, w+z = x+y
w+z = 180 degree
Now, x+y = 180 degree & w+z = 180 Degree
From Axiom 6.2: If the sum of two adjacent angles is 180 degree, then non-common arms from a line (Reverselinear pair)
.: AOB is a straight line.
Hence Proved!
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