Geometry Vocabulary

One fixed endpoint and extends infinitely along the line from the endpoint.

• array

• line segment

• ray

• line

Which word does the figure above model?

• array

• line segment

• ray

• line

Tags

CCSS.3.G.A.1

Which choices best model and name being an equal distance apart without ever touching?

• 
• parallel lines

• 
• 
• perpendicular lines

Which choices best model and name lines being at a right angle to each other?

• perpendicular lines

• 
• parallel lines

• intersecting lines

• 

An acute angle is

• the angle formed by two perpendicular lines

• an angle that measures 180 degrees

• an angle more than 90 degrees but less than 180 degrees

• an angle less than 90 degrees

When lines meet or cross at some point they are called

• interior

• parallel

• intersecting

• perpendicular

Attributes are

• being an equal distance apart without ever touching

• information that determines the properties of something

• any four-sided figure

• when one shape becomes exactly like another after a flip, slide, or turn (mirror image)

Tags

CCSS.3.G.A.1

Which choices best describe and model an obtuse angle?

• measures 90 degrees

• 
• measures more than 90 degrees but less than 180 degrees

• 

Which word means when one shape becomes exactly like another a flip, slide, or turn

• polygon

• attribute

• symmetry

• isosceles

A polygon is

• a closed figure with 3 or more straight sides

• a closed figure

• an four-sided figure

• a circle

Tags

CCSS.3.G.A.1