Question

Help me please
for class 9 ncert​

Answer 1

Answer:

your answer hope it helps u mark me brainliest plss

Answer 2

Step-by-step explanation:

Given:- X+Y=W+Z

To Prove:- AOB is a line.

Proof:- X+Y=W+Z

Now, X+Y+W+Z=360°

W+Z+W+Z=360°

2(W+Z)=360°

W+Z=360\2

W+Z=180°

So,angleW and angleZ are linear pair.(W+Z=180°)

hence, AOB is a line.

Hope It will help you.