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.

You have a few minutes to study for the Bellwork Quiz. 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