Lines, Line Segments, Parallel, Perpendicular Lines

Front

What is a point?

Back

A point is a specific location in space that has no size or dimension.

Front

What are parallel lines?

Back

Parallel lines are lines that never intersect or cross each other.

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What are perpendicular lines?

Back

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Front

What does horizontal mean?

Back

Horizontal means parallel to the horizon; it goes from left to right.

Front

What does vertical mean?

Back

Vertical means straight up and down; it goes from top to bottom.

Front

Can parallel lines ever meet?

Back

No, parallel lines never meet or intersect.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What is an example of perpendicular lines?

Back

The edges of a square are examples of perpendicular lines.