Question

if x+y=w+z then prove that AOB is a line​

Answer 1

Answer:

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Answer 2

X + Y + Z + W = 360°

At a point total angle is 360°

X + Y = W + Z

Now,

:- W + Z + W + Z = 360°

- 2W + 2Z = 360°

- 2( W + Z) = 360°

- W + Z = 360/2

- W + Z = 180°

Also X + Y = 180°

So, AOB is a line ( X and Y are making linear pair)