Question

which is the endpoint of a ray? point r point s point t point u

Explanation:

Step1: Recall ray definition

A ray has one endpoint and extends infinitely in one direction.

Step2: Analyze given rays

In the figure, rays start from points. Ray starting from R goes upwards, and R is its endpoint. Rays starting from S go towards T and U, so S is their starting - point (endpoint). But among the options, point R is an endpoint of a ray.

Answer:

A. point R