Answer:
protons- (i hope this helps!) Im sorry if this is wrong!
Step-by-step explanation:
I think its the answer i have the same question and i don't know it so...
Answer:
A.
two rays that share a common endpoint called the vertex
Step-by-step explanation:
In Euclidean geometry, an angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.