Question

Which is a correct way to name the ray whose endpoint is point S and that contains point U?

Answer 1

That would be the third one. The ray in your picture shows RSTUV, right? But when considering S is the endpoint and T is between S and U on your ray, the third one would be correct. The S has to be the first letter, and it is. In the other one where S is the first letter, in SR, the ray is going the wrong way. Get it?

Answer 2

The endpoint in a ray has to be first in the sequence as the starting point, Always.

Answer 3

thanxs for the help means alot

Answer 4

You're welcome!