An Angle ended in 2008.
The common end point of the sides (or arms) of an angle is the vertex of the angle.
vertex
The point of the angle is called the vertex.
Interior angle or am i getting the wrong end of the stick?
The common end point of the sides of an angle is called the vertex. The sides are referred to as rays.
That's the angle's "vertex".
A right angle is an angle of 90 degrees. Any angle not 90 degrees is not a right angle. End of story.
A vertex
Yes when two lines share a common end point an angle is formed
No. They form an angle.
Think of a four-sided figure. If you try to add an angle to it, you will end up with five sides. If you try to add a side to it, you will end up with another angle. Every time a side heads in a different direction, an angle is formed.
vertex