Geometry terminology

A right angle is ...

• An angle that is exactly equal to 90 degrees

• An angle that is greater than 90 degrees but less than 180 degrees

• An angle that is less than 90 degrees

• An angle that is exactly equal to 180 degrees

A straight angle is ...

• An angle that is exactly equal to 90 degrees

• An angle that is greater than 90 degrees but less than 180 degrees

• An angle that is less than 90 degrees

• An angle that is exactly equal to 180 degrees

An obtuse angle is ...

• An angle that is exactly equal to 90 degrees

• An angle that is greater than 90 degrees but less than 180 degrees

• An angle that is less than 90 degrees

• An angle that is exactly equal to 180 degrees

An acute angle is ...

• An angle that is exactly equal to 90 degrees

• An angle that is greater than 90 degrees but less than 180 degrees

• An angle that is less than 90 degrees

• An angle that is exactly equal to 180 degrees

Select the right angle from the list below:

• <FBH

• <EDA

• <EDG

• <FBA

Lines AF and BK are what type of line?

• Perpendicular lines

• Intersecting lines

• Skew lines

• Parallel lines

Name this type of angle

• Null

• Acute

• Right

• Obtuse

Name this type of angle.

• Null

• Acute

• Right

• Obtuse

A straight row of points that starts at one point and goes on forever in one direction is called a ___________.

• line

• line segment

• ray

• angle

A geometric shape formed by two rays, lines, or line segments that meet at a common point

• ray

• angle

• vertex

• line segment