lines and angles

Front

What is a line segment?

Back

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

Front

What are parallel lines?

Back

Parallel lines are lines that never meet and are always the same distance apart.

Front

What are perpendicular lines?

Back

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

Front

What is a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.

Front

What is a ray?

Back

A ray is a part of a line that starts at one point and goes on forever in one direction.

Front

How do you identify a line segment in a diagram?

Back

A line segment is shown as a straight line with two endpoints.

Front

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

Back

A line goes on forever in both directions, while a line segment has two endpoints.

Front

What do we call two lines that cross each other?

Back

Two lines that cross each other are called intersecting lines.

Front

Can parallel lines ever meet?

Back

No, parallel lines never meet.

Front

What is the symbol for a right angle?

Back

The symbol for a right angle is a small square in the corner of the angle.