No.
"Common" implies shared between two (or more) objects. One item - ray or whatever - cannot have a common anything.
They can have only one point in common.
a ray starts at a point and goes on forever
The point at the end of a ray is called the endpoint. It is the specific location where the ray ends or terminates.
Yes (supposing that by side you mean ray...angles don't have sides because they are 2D, not 3D.) If you have a point and you draw four random rays from that point, that only meat at that point, then you would have created four angles. The two angles on opposite sides of the point will share a vertex, but not a RAY.
A ray has one fixed point, which is its endpoint. This is the point from which the ray extends infinitely in one direction. The other side of the ray continues indefinitely, so it does not have a fixed point on that end.
A ray has only one end point.
There is no end point, a ray is never ending but has a point to represent the beginning
A ray.
It depends on what the name of the initial point is because that defines the direction of the ray. If the initial point is c, then the ray must be called cd, but if the initial point is d, then the ray must be called dc.
point
An opposite ray is a pair of rays that share the same endpoint and extend in opposite directions. This can be visualized as two rays emanating from a common point but extending in opposite directions along the same line.
ray allen's 3 point percentage is 85.7