Geometry Vocabulary

Which type of polygon has 3 sides, 3 angles, and 3 vertices?

• Triangle

• Square

• Octagon

• Quadrilateral

Which shape is a pentagon?

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• 
• 
• 

Which shape is not a polygon?

• 
• 
• 
• 

• acute angle
• obtuse angle
• right angle
• straight angle

Define Acute

• Less than 90
• Exactly 90
• Greater than 90 and less than 180
• Exactly 180

Parallel lines will...

• intersect with one another.
• cross each other.
• touch each other.
• will never intersect with one another.

What does the prefix "tri" mean?

• four
• three
• two
• five

• perpendicular lines
• parallel lines
• vertex
• intersecting

What shape has the following attributes? 6 sides, 6 angles, and 6 corners

• triangle

• pentagon

• hexagon

• square

A polygon is a 2-D shape that has no

• vertices

• curves

• angles

• parallel lines