• Use the facts that linear pair forms supplementary angles to prove that vertical angles are congruent.
o Vertical angles are congruent.
![Use The Facts That Linear Pair Forms Supplementary Angles To Prove That Vertical Angles Are Congruent O Vertical Angles Are Congruent class=](https://ph-static.z-dn.net/files/d6e/50e65956f69c8e4154f3697e22fb1d93.png)