Transcript Nets-_Notes_Modified

Nets
Nets
A net is a
pattern that you
cut out and fold
to form
a 3 - dimensional
figure.
Vocabulary Terms
A cube is a prism
with six congruent
faces.
Face
Vocabulary Terms
An edge is a
segment where
two faces meet.
Edge
Vocabulary Terms
A vertex is a point where
two sides of a polyhedron
meet or a point opposite
the base of a cone.
Vertex
How many nets do you
think you can come up
with to form a cube?
There are
exactly
eleven nets
that will
form a
cube.
Nets for Pyramids have one
base and lots of triangles.
Sometimes they look like
stars.
Are
these
nets
lined
up with
the right
3-D
shape?
Are
these
nets
lined
up with
the right
3-D
shape?
Triangular
What solid
will thisPrism
net form?
Square
or Rectangular
Prism
What solid
will this net form?
Square
Rectangular
What or
solid
will this netPyramid
form?
What
solid will this
net form?
Triangular
Pyramid
STOP!!
End of Day 1
Cube Activity
Vocabulary Terms
Prism – a A
cylinder with
polygons for
bases (faces).
All prisms are
special cases of
cylinders.
FACE
FACE
Vocabulary Terms
In a prism,
these faces
are called
bases. You
name a
prism by the
shape of its
bases.
BASE
BASE
Vertices
6
Edges
9
Faces
5
The base has 3 sides.
The base has 4 sides.
Vertices
8
Edges
12
Faces
6
The base has 5 sides.
Vertices
10
Edges
15
Faces
7
Name
Picture
Base Vertices Edges
Faces
Triangular
Prism
3
6
9
5
Rectangular
Prism
4
8
12
6
Pentagonal
Prism
5
10
15
7
Any Prism
n
2n
3n
n+2
Make sure to fill in
your chart correctly!
A pyramid is a cone with a polygon
for a base. All faces joining the
vertex are triangles. They are named
by the shape of the base.
Vertices
4
Edges
6
The base has
3 sides.
Faces
4
The base has
4 sides.
Vertices
5
Edges
8
Faces
5
The
base
has 5
sides.
Vertices
6
Edges
10
Faces
6
Name
Picture
Base Vertices Edges
Faces
Triangular
Pyramid
3
4
6
4
Square
Pyramid
4
5
8
5
Pentagonal
Pyramid
5
6
10
6
Any Pyramid
n
n+1
2n
n+1
Make sure to fill in
your chart correctly!
STOP!!
End of Day 2
Prism & Pyramid Activity
Special 3-D Shapes
Cylinder
Sphere
Cone
Sphere
Every point on
the surface of
the sphere is
the same
distance from
the center
The normal definitions of faces,
edges and vertices are not
appropriate for a sphere.
Cone
The vertex of the
cone is opposite
the circular base
of a cone.
The cone has a face, a vertex, and
an edge (formed by the base and
the lateral face).
Cylinder
A prism with
two congruent,
parallel faces
called bases.
A cylinder has 2 faces (circular bases),
edges and no vertices.
STOP!!
End of Day 3
Cone & Cylinder Activity