Math, asked by crusenarpit, 11 months ago

Solve this problem in brief

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Answered by saisidharth84

2

Answer:

x+y=180°

Step-by-step explanation:

x+y=w+z. (given)

x+y+w+z=360°. (complete angle)

x+y+x+y= 360°. (x+y=w+z)

2(x+y). =360°

x+y. =180°

Hence,proved that AOB is a line as <AOB=180°

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