ThreeDimensional

Figures

Vocabulary to know:

• Face – a flat surface of a three dimensional figure.

• Edge – where two faces meet.

• Vertex – point where three or more edges meet.

EdgeVertex

FaceBase

Prism

• Definition:

–A three dimensional figure with two parallel, congruent bases.

–The base can be any polygon.

–The other faces must be parallelograms.

Pyramid

• Definition:

–A three dimensional figure with base, and faces made of triangles.

–The base can be any polygon.

Pyramid

• Definition:

–A three dimensional figure with base, and faces made of triangles.

–The base can be any polygon.

Naming a Prism or Pyramid

• Step 1

– Identify and name the base

• Step 2

– Identify if it is a prism or pyramid

Name the figure

Rectangular Prism

Name the figure

Triangular Prism

Name the figure

Pentagonal Pyramid

Name the figure

Cone

Name the figure

Sphere

Name the figure

Cylinder

Name the figure

Cube

Special Cases

Cone

Sphere

Cube (a.k.a. – square prism)

Cylinder