Hello, I’m Emac, or you may call me Eric.
I will be helping you for today, I understand your issue and will be trying to be most helpful as I can.
Here is some information that I found about the vertex.
Vertex - The common endpoint of two rays at which an angle is formed. Vertical Angles - Pairs of angles formed where two lines intersect. These angles are formed by rays pointing in opposite directions, and they are congruent. Vertical angles come in pairs.
Thank you for your time, if you need anymore information about that please reply to my comment and I will respond whenever I have time.
If this information helps PLEASW press the thanks button so I know I helped, if you don’t please reply asking what you need.
Enjoy the rest of your day/night!
