Lesson 30 Vocabulary

A straight row of points that start at one point and goes on in one direction forever.

• point

• line segment

• line

• ray

A single location in space

• parallel lines

• point

• vertex

• angle

A straight row of points that starts at one point and ends at one point

• line segment

• line

• vertex

• perpendicular lines

A common point where rays, lines, or line segments meet to form an angle

• right angle

• ray

• vertex

• obtuse angle

A straight row of points that that goes on forever in both directions

• parallel lines

• angle

• ray

• line

• line segment

• obtuse angle

• acute angle

• Perpendicular lines

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

• line

• angle

• vertex

• point

• obtuse angle

• acute angle

• Vertex

• right angle

Lines that are always the same distance apart and never cross

• perpendicular lines

• Acute angle

• parallel lines

• ray

• True
• False