rays

A ray is a part of a line that starts at a specific point and extends infinitely in one direction. Think of it like shining a flashlight: the point where the light begins is the starting point, and the light continues outward without end in that direction. Unlike a line, which has no beginning or end, a ray has a definite starting point but can go on forever. Rays are used in geometry to represent directions and angles, helping us understand how lines and shapes relate to each other.