how to solve this problem.
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to prove=LAOB=180 or x+y=180 or y+z=180
proof=x+y+z+w=360(complete angle)
w+z+z+w=360
2w+2z=360
2(w+x)=360
w+z=360/2
w+z=180
hence proved,AOB IS A STRAIGHT LINE
proof=x+y+z+w=360(complete angle)
w+z+z+w=360
2w+2z=360
2(w+x)=360
w+z=360/2
w+z=180
hence proved,AOB IS A STRAIGHT LINE
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thnk u so much
ur wlcm
vanshika ji
hm
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