Transcript No Slide Title

Solid
Figures
The sides of a solid
figure are called faces.
face
Edges are formed
when two faces meet.
edge
A vertex is formed
where three edges
meet.
vertex
Vertices is the plural
form of vertex.
A prism is a solid figure
whose bases lie in parallel
planes and whose faces
are parallelograms.
base - bottom face
of a solid figure
Prisms are named according to their
bases.
Base
triangle
Name of Prism
triangular prism
rectangle rectangular prism
hexagon hexagonal prism
This is a special
prism called a cube.
All of its faces are
squares.
A pyramid is a solid figure
whose base is a polygon
and whose faces are
triangles with a vertex in
common.
Pyramids are named according to their
bases.
Base
Name of Pyramid
triangle
triangular pyramid
rectangle rectangular pyramid
pentagon pentagonal pyramid
How are pyramids
different from prisms?
Solid
Pyramid
Prism
Number of
Bases
1
2 congruent
Face
Triangular
Rectangular
A pyramid comes
to a point or vertex.
Not all solid figures have flat
surfaces. Some 3-dimensional
figures have curved surfaces.
vertex
Cone - a solid
figure with one
circular base and
one vertex
circular base
Cylinder - a solid
figure with two
congruent circular
faces