Bellwork #
HW, red pen, book
on desk.
Space Figures
Lesson 10-4 p.521
Space Figures
 A space figure is a 3-dimensional figure.
We commonly think of cubes, prisms,
and spheres and cylinders.
Rectangular prism
Triangular prism
Space figures
Cylinder
Square prism (cube)
Space figures
To name a space figure, we first look at
the shape of the base. There are two of
them.
 If
the base is a square, the space figure is
a square prism.
 If the base is a triangle, the space figure is
a triangular prism,
 If the base is a circle, the space is a
cylinder.
Try This
 Name the following space figures:
Try This
 Name the following space figures:
Triangular Prism
Try This
 Name the figure:
Try This
 Name the figure:
Cylinder
Try This
 Name the figure:
Try This
 Name the figure:
Trapezoidal prism
Space Figures and Nets
 If you could take a space figure such as
a square prism, and take it apart so that
is lies flat, you would have a shape
called a net
 For example:
This is a square prism. . .
Nets
 And here is one way to draw the net:
Nets
 Here is a triangular prism:
Nets
 Here is a triangular prism:
And below is the net:
Notice the triangles are the bases
Try This
 Draw the net for this figure:
Try This
The blue rectangles are the bases.
Try This
 Draw the net for this cylinder:
Try This
 Draw the net for this cylinder:
It is important to see that a cylinder is 2 circles and a rectangle.
3-21-11
You have a few
minutes to study
for the Bellwork
Quiz.

3-21-11
PA#41
Pp.523-524 #8-18, 29-34