Parallel, Perpendicular, and Intersecting Lines

Front

What are intersecting lines?

Back

Lines that cross each other at one point.

Front

What are perpendicular lines?

Back

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

Front

What are parallel lines?

Back

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

Front

How can you identify if two lines are parallel?

Back

If they have the same slope in a coordinate plane.

Front

What is the relationship between perpendicular lines and slopes?

Back

The slopes of two perpendicular lines are negative reciprocals of each other.

Front

Can two lines be both parallel and intersecting?

Back

No, two lines cannot be both parallel and intersecting.

Front

What is the angle formed by two perpendicular lines?

Back

90 degrees.

Front

What is the significance of intersecting lines in geometry?

Back

They can create angles and are used to define shapes.

Front

What is a transversal line?

Back

A line that intersects two or more lines at different points.

Front

What are corresponding angles?

Back

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