What is a ray in maths?

In mathematics, a ray is a straight line that begins at a specific point and goes on infinitely in one direction. It is often described as having a starting point (the endpoint) and extending towards infinity. A ray is represented by a line segment with an arrow head on one end to indicate its direction.

Rays are commonly used in geometry to represent lines that start from a point and extend infinitely in a single direction. They are often used to define angles, as rays can be used to form the sides of an angle when they share a common endpoint.

Rays can also be classified based on their position in relation to other rays or angles. For example, two rays with a common endpoint are called adjacent rays, and two rays that form a straight line are called opposite rays.

Overall, rays are a fundamental concept in geometry and are essential for understanding and solving various mathematical problems and equations.