Post on 11-Jan-2016
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