Perpendicular, intersecting, and Parallel lines

Front

What are intersecting lines?

Back

Lines that cross each other at one point.

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

How can you identify parallel lines in a diagram?

Back

They will have the same slope and will not intersect.

Front

What is the relationship between intersecting lines and angles?

Back

Intersecting lines create angles at the point where they cross.

Front

What is the sum of the angles formed by two intersecting lines?

Back

The sum of the angles is always 360 degrees.

Front

What is a transversal line?

Back

A line that crosses two or more 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 is the relationship between alternate interior angles when lines are parallel?

Back

They are equal.