1. Solid Figures
Vocabulary

2. SOLID FIGURES 3 – Dimensional (3 – D) shapes
They are made up of 2 – D shapes (squares, rectangles, triangles, circles, and more)
Include: cylinders, cubes, prisms, pyramids, cones, and spheres

3. A 2 – D shape with three or more sides (a circle is NOT a polygon)

4. A 3 – D shape in which all faces and bases are polygons
POLYHEDRON
A 3 – D shape in which all faces and bases are polygons

5. FACE
One of the sides of a polyhedron (must be a polygon in order to be a face)

6. The solids we study will have either 1 or 2 bases
The part of the figure that is on the top or bottom (the part it sits on)
The solids we study will have either 1 or 2 bases

7. The intersection of two faces in a solid figure
EDGE
The intersection of two faces in a solid figure

8. VERTEX The point where three or more edges meet.
VERTICES is the plural of “vertex”

9. Prisms are named by the shapes of their two bases
A polyhedron with 2 parallel and congruent bases, and the other faces are rectangles
Prisms are named by the shapes of their two bases

10. Examples of Prisms…

11. A special prism with all 6 faces as congruent squares
CUBE
A special prism with all 6 faces as congruent squares

12. CYLINDER A 3-D shape with two parallel, congruent circular bases
NOT a polyhedron because the bases are not polygons

13. Examples of Cylinders…

14. PYRAMID A polyhedron with 1 base and triangular faces
Pyramids are named after the shape of the base

15. Examples of Pyramids…

16. CONE A 3-D figure with 1 circular base
NOT a polyhedron because the base is not a polygon

17. Examples of Cones…

18. A pattern that can be folded to create the outside of a solid figure
NET
A pattern that can be folded to create the outside of a solid figure

19. SURFACE AREA
The sum of the areas of the 2 – D shapes which make up a solid figure
Draw the net & add up the areas of all of the parts

20. VOLUME The number of cubic units needed to fill a space
The amount of space inside a solid figure