Unit 8 Geometry Vocabulary

The point where two sides meet.

• Congruent

• Vertex

• Side

• Face

Equal size/same shape

• Congruent

• Regular Figure

• Base

• Edge

A straight outside line of a 2D figure.

• Parallel

• Vertex

• Edge

• Side

The face of a 3D shape that it rests on.

• Face

• Base

• Congruent

• Square Corner

A 2D shape that is closed with all straight sides.

• Classify

• Attribute

• Parallel

• Polygon

To apply an attribute to categorize a sorted group.

• Polygon

• Classify

• Attribute

• Sort

A characteristic or property of a shape.

• Attribute

• Classify

• Vertex

• Irregular Figure

The flat surface of a 3D shape.

• Base

• Face

• Edge

• Attribute

Two straight lines that go on forever and never touch.

• Parallel

• Congruent

• Sort

• Polygon

A figure that has all congruent sides.

• Base

• Square Corner

• Irregular Figure

• Regular Figure