This document defines key vocabulary terms related to solid figures including polyhedron, face, edge, vertex, prism, base, pyramid, cylinder, and cone. A polyhedron is a 3D solid object with flat polygon faces that meet at edges. A prism has two parallel polygon bases and pyramid has one polygon base and triangular sides meeting at a vertex. Cylinders and cones are not considered polyhedrons because their faces are circular rather than polygons.

1. Name__________________________________ Date ___________________
Mrs. Labuski & Mrs. Rooney Period ______ Lesson 10-6 Solid Figures
VOCABULARY DEFINITION EXAMPLE
Polyhedron
A three-dimensional
object, or solid figure
Face
A flat surface on a
polyhedron face edge
Edge
When two faces share
a side
On a solid figure a
Vertex point at which three or
vertex
more edges meet
A polyhedron with two
Rectangular Prism Hexagonal Prism
Prism congruent, polygon-
shaped parallel bases
Triangular Prism Pentagonal Prism
A side or face of a
Base polyhedron by which
the figure is named
A polyhedron with a
polygon base and
Pyramid triangular sides that all
meet at a common Triangular Rectangular
vertex. pyramid pyramid

2. A three-dimensional
figure with two Not a
Cylinder
parallel, congruent polyhedron
circular bases. because they
have circular
faces which
A three-dimensional
means they
Cone figure with one vertex
are not
and one circular base.
polygons.

3. Name__________________________________ Date ___________________
Mrs. Labuski & Mrs. Rooney Period ______ Lesson 10-6 Solid Figures
VOCABULARY DEFINITION EXAMPLE
Polyhedron
Face
Edge
Vertex
Prism
Base
Pyramid

4. Cylinder
Cone