Chapter 1 - Tools of Geometry - 1-2 Points, Lines, and Planes - Lesson Check - Page 16: 7

A line extends infinitely in two directions and is represented by $\overleftrightarrow{AB}$. A ray extends infinitely in one direction and is represented by $\overrightarrow{AB}$.

Work Step by Step

The fact that a line goes infinitely in two directions while a ray goes infinitely in one direction is what differentiates a line and a ray.

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