4th Grade Geometry Vocabulary Guide

What is the term for the following definition: 'a unit of measure for angles. There are 360° in a circle.'?

• degree (°)

• radian

• meter

• second

Tags

CCSS.HSG.CO.A.1

CCSS.4.MD.C.5B

What is the term for the following definition: 'an angle that measures less than 90°'?

• acute angle

• obtuse angle

• right angle

• reflex angle

Tags

CCSS.4.G.A.1

What is the term for the following definition: 'a straight row of points that goes on forever in both directions'?

• line

• segment

• ray

• angle

Tags

CCSS.4.G.A.1

What is the term for the following definition: 'a straight row of points that starts at one point and ends at another point'?

• line segment

• ray

• angle

• circle

Tags

CCSS.HSG.CO.A.1

What is the term for the following definition: 'an angle that measures more than 90° but less than 180°'?

• obtuse angle

• acute angle

• right angle

• reflex angle

Tags

CCSS.4.G.A.1

What is the term for the following definition: 'lines that are the same distance apart and never cross'?

• parallel lines

• intersecting lines

• perpendicular lines

• skew lines

Tags

CCSS.HSG.CO.A.1

What is the term for the following definition: 'two lines that meet to form a right angle (90° angle)'?

• perpendicular lines

• parallel lines

• intersecting lines

• skew lines

Tags

CCSS.HSG.CO.A.1

What is the term for the following definition: 'a single location in space'?

• point

• line

• plane

• angle

Tags

CCSS.4.G.A.1

What is the term for the following definition: 'a straight row of points that starts at one point and goes on forever in one direction'?

• ray

• line segment

• angle

• plane

Tags

CCSS.4.G.A.1

What is the term for the following definition: 'an angle that looks like a square corner and measures 90°'?

• right angle

• acute angle

• obtuse angle

• straight angle

Tags

CCSS.4.G.A.1