Question

plz answer this now​

Answer 1

Answer:

x + y = w + z ( given )

also x + y + w + z = 360° ( complete angle )

x + y + x + y = 360°

2 ( x + y ) = 360°

x+ y = 360° / 2

x+ y = 180°

therefore it is a straight line.

Hence Proved!