Parallel, Perpendicular, and Intersecting lines

Front

What are parallel lines?

Back

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

Tags

CCSS.HSG.CO.A.1

Front

What are perpendicular lines?

Back

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

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What are intersecting lines?

Back

Lines that cross each other at any angle.

Tags

CCSS.HSG.CO.A.1

Front

Can parallel lines ever meet?

Back

No, parallel lines never meet.

Tags

CCSS.HSG.CO.A.1

Front

Can perpendicular lines be parallel?

Back

No, perpendicular lines intersect at a right angle.

Tags

CCSS.HSG.CO.A.1

Front

What is an example of parallel lines?

Back

The rails of a train track.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is an example of perpendicular lines?

Back

The corner of a square or rectangle.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What is an example of intersecting lines?

Back

The letter 'X' is formed by intersecting lines.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

How many degrees do perpendicular lines form?

Back

90 degrees.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

If two lines are parallel, what can we say about their slopes?

Back

Their slopes are equal.

Tags

CCSS.8.EE.B.6