Perpendicular, intersecting, and Parallel lines

Front

What are lines that never meet and are always the same distance apart?

Back

Parallel Lines

Front

What do you call lines that cross each other?

Back

Intersecting Lines

Front

What are lines that meet at a right angle (90 degrees)?

Back

Perpendicular Lines

Front

If two lines are parallel, what can you say about the angles formed when a third line crosses them?

Back

The corresponding angles are equal.

Front

What is the angle formed by two perpendicular lines?

Back

90 degrees

Front

Can two lines be both parallel and intersecting?

Back

No, they cannot.

Front

What is an example of intersecting lines in real life?

Back

The intersection of two streets.

Front

If two lines are perpendicular, what is the relationship between their slopes?

Back

The product of their slopes is -1.

Front

What do you call a pair of lines that are not parallel and do not intersect?

Back

Skew Lines

Front

In a coordinate plane, how can you identify parallel lines?

Back

They have the same slope.