Parallel and Perpendicular Lines

What are parallel lines?

• Lines that intersect at one point

• Lines that are perpendicular to each other

• Lines that never intersect

• Lines that intersect at multiple points

What is the symbol used to represent parallel lines?

• ||

• ++

• ==

• //

What are perpendicular lines?

• Two lines that intersect at a 45-degree angle.

• Two lines that never intersect.

• Two lines that intersect at a right angle (90 degrees).

• Two lines that intersect at a 180-degree angle.

What is the symbol used to represent perpendicular lines?

• ||

• ∟

• ⊥

• ∥

If line A is parallel to line B, and line B is parallel to line C, what can you say about line A and line C?

• Line A is parallel to line C.

• Line A is perpendicular to line B.

• Line A intersects line C.

• Line A is perpendicular to line C.

If line A is perpendicular to line B, and line B is perpendicular to line C, what can you say about line A and line C?

• Line A is parallel to line C.

• Line A is intersecting line C.

• Line A is at an angle to line C.

• Line A is perpendicular to line C.

If line A is parallel to line B, and line B is perpendicular to line C, what can you say about line A and line C?

• They are perpendicular to each other.

• They are not related to each other.

• They are intersecting each other.

• They are parallel to each other.

If line A is perpendicular to line B, and line B is parallel to line C, what can you say about line A and line C?

• They are parallel.

• They intersect at a point.

• They are not related.

• They are perpendicular.