N ray

A ray is like a straight line that points in a particular direction and goes on forever, like a beam of light. Every ray starts from one point and extends out in one direction. You can imagine it like a giant arrow going out into space. Rays are used in math, science, art, and engineering in different ways. For example, in math you can use rays to help you graph equations or draw shapes. In engineering, rays can be used to see how light or sound waves travel. In art, rays can be used to create different lighting effects.