Parallel, Perpendicular, and Intersecting Lines

Front

What are parallel lines?

Back

Lines that never meet and are always the same distance apart.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle (90 degrees).

Front

What are intersecting lines?

Back

Lines that cross each other at any angle.

Front

Which figure shows a set of perpendicular lines?

Back

Look for lines that meet at a right angle.

Front

Which figure shows a set of parallel lines?

Back

Look for lines that never meet and are equidistant.

Front

What is a line?

Back

A straight path that goes on forever in both directions.

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 starts at one point and goes on forever in one direction.

Front

How can you identify parallel lines in a figure?

Back

They will never intersect and will be the same distance apart.

Front

How can you identify perpendicular lines in a figure?

Back

They will form a right angle (90 degrees) where they intersect.