by D. Fisher

Three dimensional figures are Three dimensional figures are figures that enclose a space.figures that enclose a space.

Polyhedrons – a three Polyhedrons – a three dimensional figure in which dimensional figure in which each surface is shaped like each surface is shaped like

a polygon.a polygon.

PolyhedronPolyhedron

The parts of a polyhedron have special The parts of a polyhedron have special names.names.

FaceFace: a flat surface that is shaped like a : a flat surface that is shaped like a polygon.polygon.

EdgeEdge: the segment formed by the : the segment formed by the intersection of two faces.intersection of two faces.

VertexVertex: a point where three or more edges : a point where three or more edges intersect.intersect.

PrismPrism

A A prismprism is a polyhedron with two faces is a polyhedron with two faces

(called the (called the basesbases) that have the ) that have the

same size and shape and lie insame size and shape and lie in

parallel planes. parallel planes. BasesBases

The The lateral faceslateral faces are the faces that are the faces that

are not the bases. Each lateralare not the bases. Each lateral

face is shaped like a parallelogram.face is shaped like a parallelogram.

Lateral Face Lateral Face

Vertices (points)

Edges (lines)

Faces (planes)

6 6

99

55The base has 33 sides.

Vertices (points)

Edges (lines)

Faces (planes)

8

1212

66

The base has sides.44

Vertices (points)

Edges (lines)

Faces (planes)

1010

1515

77

The base has sides.55

Vertices (points)

Edges (lines)

Faces (planes)

1212

1818

88

The base has sides.66

Vertices (points)

Edges (lines)

Faces (planes)

1616

2424

1010

The base has sides.88

Name Picture Base Vertices Edges Faces

Triangular Triangular PrismPrism

Rectangular Rectangular PrismPrism

Pentagonal Pentagonal PrismPrism

Hexagonal Hexagonal PrismPrism

Heptagonal Heptagonal PrismPrism

Octagonal Octagonal PrismPrism

33 66 99 55

44 88 1212 66

55 1010 1515 77

66 1212 1818 88

77 1414 2121 99

88 1616 2424 1010

Any PrismAny Prism nn 2n2n 3n3n n + 2n + 2

Draw itDraw it

No No picturepicture