Geometry Terms and Concepts Quiz

Front

What is a line segment?

Back

Part of a line with two endpoints

Front

What is a line?

Back

A straight path that goes on forever in both directions

Front

What is a ray?

Back

A line that starts at one point and goes on forever in one direction

Front

What is an angle?

Back

Space where two lines or rays meet

Front

What are parallel lines?

Back

Stay same distance apart, never meet

Front

What are perpendicular lines?

Back

Cross to make a 90° angle

Front

What is an acute angle?

Back

Angle less than 90°

Front

What is a right angle?

Back

Angle exactly 90°

Front

What is an obtuse angle?

Back

Angle between 90° and 180°

Front

What is a straight angle?

Back

Angle exactly 180°