Lines, Line Segments, Parallel, Perpendicular Lines

Front

What are parallel lines?

Back

Lines that never intersect.

Front

What kind of intersecting lines are these?

Back

Perpendicular Lines.

Front

This line is:

Back

Horizontal.

Front

A point where two lines meet is called a:

Back

Vertex.

Front

This line is what?

Back

Vertical.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What do we call lines that meet at a right angle?

Back

Perpendicular Lines.

Front

What is the difference between a line and a line segment?

Back

A line goes on forever in both directions, while a line segment has two endpoints.

Front

What are adjacent lines?

Back

Lines that are next to each other and share a common point.

Front

What is a horizontal line?

Back

A line that goes from left to right.