Parallel, Perpendicular, and Intersecting Lines

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet. They are always the same distance apart.

Tags

CCSS.HSG.CO.A.1

Front

What are perpendicular lines?

Back

Perpendicular lines are 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

Intersecting lines are lines that cross each other at any angle.

Tags

CCSS.HSG.CO.A.1

Front

If two lines are parallel, what can be said about their slopes?

Back

If two lines are parallel, their slopes are equal.

Tags

CCSS.8.EE.B.6

Front

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

Back

If two lines are perpendicular, the product of their slopes is -1.

Tags

CCSS.8.EE.B.6

Front

Give an example of parallel lines in real life.

Back

Railroad tracks are an example of parallel lines.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

Give an example of perpendicular lines in real life.

Back

The edges of a book are an example of perpendicular lines.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

Give an example of intersecting lines in real life.

Back

The intersection of two roads is an example of intersecting lines.

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What symbol is used to denote parallel lines?

Back

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1

Front

What symbol is used to denote perpendicular lines?

Back

Tags

CCSS.4.G.A.1

CCSS.HSG.CO.A.1