4th Grade Geometry Vocabulary Guide

A unit of measure for angles. There are 360° in a circle. The term is _______.

• degree (°)

• radian (rad)

• meter (m)

• second (s)

Tags

CCSS.4.MD.C.6

An angle that measures less than 90°. The term is _______.

• acute angle

• obtuse angle

• right angle

• reflex angle

Tags

CCSS.4.G.A.1

A straight row of points that goes on forever in both directions. The term is _______.

• line

• segment

• ray

• angle

Tags

CCSS.4.G.A.1

A straight row of points that starts at one point and ends at another point. The term is _______.

• line segment

• ray

• angle

• circle

Tags

CCSS.HSG.CO.A.1

An angle that measures more than 90° but less than 180°. The term is _______.

• obtuse angle

• acute angle

• right angle

• reflex angle

Tags

CCSS.4.G.A.1

Lines that are the same distance apart and never cross. The term is _______.

• parallel lines

• perpendicular lines

• intersecting lines

• transversal lines

Tags

CCSS.HSG.CO.A.1

Two lines that meet to form a right angle (90° angle). The term is _______.

• perpendicular lines

• parallel lines

• intersecting lines

• skew lines

Tags

CCSS.HSG.CO.A.1

A single location in space. The term is _______.

• point

• line

• plane

• angle

Tags

CCSS.4.G.A.1

A straight row of points that starts at one point and goes on forever in one direction. The term is _______.

• ray

• line segment

• angle

• circle

Tags

CCSS.4.G.A.1

An angle that looks like a square corner and measures 90°. The term is _______.

• right angle

• acute angle

• obtuse angle

• straight angle

Tags

CCSS.4.G.A.1