Geometry Nets

3D Shapes and Nets

Parts of a 3D Shape

Vertices - the corners of a 3D shape

Edges - the line where two "faces" meet

Face - the flat surface on a 3D shape

Parts of a 3D Shape

Vertices - the corners of a 3D shape

Edges - the line where two "faces" meet

Face - the flat surface on a 3D shape

Base - the "face" that the 3D shape is named after

Prism

Prism - a type of 3D shape with 2 bases connected by rectangles

Example: Triangular Prism

2 Base Triangles

Connected by 3 Rectangles

Cylinder

Cylinder - a type of prism with 2 circles for bases.

Pyramid

Pyramid - a type of 3D shape with one base connected to triangles

Example: Square Pyramid

1 Square Base

Connected to 4 Triangles

Cone

Cone - a pyramid with a circle base

Sphere

Sphere - a round 3D shape, no edges, no vertices

Net

Net - the picture of an "unfolded" 3D shape

Example: Net of a Triangular Prism

Multiple Choice

What is this picture a net of?

• Pentagonal Pyramid

• Pentagonal Prism

• Triangular Prism

• Triangular Pyramid