U1 L13: Polyhedra

What does a polyhedron have to have:

• Solid in three dimensions

• Flat polygonal faces

• straight edges and vertices

• Rounded

Difference between Prisms and Pyramids

• A prism has 2 bases and a pyramid has 1 base

• A prism has to have all 90 degree sides and a pyramid doesn't

• A prism must have a least one curved line and a pyramid doesn't

• A prism must be 3-d but a pyramid shouldn't

What is a line segment in a polygon or a polyhedron?

• a face

• a net

• an edge

• a prism

Any flat surface on a three dimensional figure is

• a side

• a flatness

• a face

• a vertex

The plural of polyhedron is

• polyhedri

• polyhedra

• polyhedrons

• pollies

The point where two edges on a polygon or polyhedron meet

• combo edge

• vertex

• line

• side

The plural of vertex is

• vortex

• vertigo

• vertical

• vertices

What is the name of this 3D solid?

• Triangular Pyramid
• Triangular Prism
• Triangular Proton
• Square Base Triangle

What is this shape?

• cone

• pyramid

• rectangular prism

• cube

The lines of a 3D shape are called...

• edges
• outside
• faces
• vertices