Question

please help me to do this
no irrelevant ​

Answer 1

Answer:

to prove :

AOB is a line

Step-by-step explanation:

x+y = w+z = 180° ( angle on a stright line )

:: hence it is proved

Answer 2

Answer:

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Step-by-step explanation:

As Given, x+y=w+z

To Prove: AOB is a line or x+y=180⁰ (linear pair.)

According to the question,

x+y+w+z=360⁰

(x+y)+(x+y)=360 ⁰

Given x+y=w+z

2(x+y)=360 ⁰

(x+y)=180⁰

Hence, x+y makes a linear pair.

Therefore, AOB is a straight line

hope it is helpful