A pair of opposite rays are two rays that have the ‘same endpoint and extend in opposite directions. … Remember that rays are always named with two points, the first point in the name must be the endpoint. So, when you name opposite rays, the first letter in the name of both rays must be the same.

What does it mean if rays are opposite?

Two rays are opposite rays, by definition, if. (1) they have the same endpoint, and. (2) their union is a line. The first letter in the name of a ray always refers to the endpoint of the ray. Therefore, has its endpoint at and has its endpoint at .

Do opposite rays have the same endpoint?

Opposite rays are rays that have the same endpoint are on the same line, but share only the endpoint. Two names of opposite rays must begin with the same letter, since the first letter in the name of a ray is the endpoint.