Tupes of Line

Front

What is a line?

Back

A straight path that extends infinitely in both directions without any endpoints.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a ray?

Back

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

Front

What does it mean for two lines to be parallel?

Back

Two lines that never intersect and are always the same distance apart.

Front

What does it mean for two lines to be perpendicular?

Back

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

Front

What is an intersection of lines?

Back

The point where two or more lines meet or cross each other.

Front

What is a transversal?

Back

A line that crosses at least two other lines.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines when cut by a transversal.

Front

What are alternate interior angles?

Back

Angles that are on opposite sides of the transversal and inside the two lines.

Front

What are alternate exterior angles?

Back

Angles that are on opposite sides of the transversal and outside the two lines.