W22 Math Unit 09 6th Grade: Geometry Vocabulary Flashcard

Front

What is an acute angle?

Back

An angle that measures less than 90°

Front

Which of the following best describes a polygon?

• A closed figure with at least 3 sides, where all sides are straight
• A three-dimensional figure with curved surfaces
• A figure with only one side
• A figure with no sides

Back

A closed figure with at least 3 sides, where all sides are straight

Front

Volume

Back

The measurement attribute of the amount of space occupied by matter

Front

What does it mean for angles to be congruent?

Back

They have the same measure

Front

Property of an equilateral triangle?

Back

All sides and angles are congruent

Front

Triangle Inequality Theorem

Back

The sum of the lengths of any two sides in a triangle must be greater than the length of the third side

Front

What is a right angle?

Back

An angle that measures exactly 90°

Front

What is a prism?

Back

A three-dimensional figure containing two congruent and parallel faces that are polygons

Front

Vertex in a three-dimensional figure

Back

The point where three or more edges meet

Front

Unit rate

Back

A ratio between two different units where one of the terms is 1