Points, Lines, Line Segments, Rays, Angles, Oh My!

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions with no endpoints.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is a ray?

Back

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Front

What is an angle?

Back

An angle is formed by two rays that share a common endpoint.

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet and are always the same distance apart.

Front

What are intersecting lines?

Back

Intersecting lines are lines that cross each other at one point.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What is the common endpoint of two rays called?

Back

The common endpoint of two rays is called the vertex of the angle.

Front

How do you name a ray?

Back

A ray is named using its endpoint and another point on the ray, for example, Ray AB.