2. What are these shapes? squarecircletrianglerectangle How many sides do each have? How many points do each have?

3. What is a solid figure? A solid figure is a three-dimensional figure. “Three- dimensional” means that the figure has measures in three directions, such as length, width, and height.

4. Examples of solid figures: cube sphere triangular prism triangular pyramid square pyramid rectangular prism cylinder cone

5. What are the parts of a solid figure? The face is the flat surface of a solid figure. cube

6. What are the parts of a solid figure? Faces can be in different shapes. Solid figures can be made with more than 1 shape. triangle rectangle

7. Some solids don’t have any faces at all??? What are the parts of a solid figure? Sphere

8. Practice counting faces: 4 Remember to count the faces that you can’t see. 6 1

9. The edge is the line segment where two faces of a solid figure meet. What are the parts of a solid figure? edge

10. Practice Counting Edges Remember to count the edges you can’t see. 12 0 8

11. The vertex is the point where three or more edges of a solid figure meet. The vertex is sometimes called a corner. What are the parts of a solid figure? vertex

12. Practice counting vertices: Remember to count the vertices that you can’t see. 8 0 4

13. What are the parts of a solid figure? The base is the face of a solid figure by which the figure is named. base

14. Examples of solid figures: cube sphere triangular prism triangular pyramid square pyramid rectangular prism cylinder cone

15. What’s the difference between a prism and a pyramid? A solid figure whose ends are congruent, parallel polygons, and whose sides are rectangles is a prism. These are prisms.

16. What’s the difference between a prism and a pyramid? A solid figure whose base is a polygon and whose other faces are triangles with a common vertex is a pyramid. These are pyramids.

17. Some solid figures have a curved surface. cone cylinder curved surface

18. Examples of solid figures: cube sphere triangular prism triangular pyramid square pyramid rectangular prism cylinder cone

19. What solid figures are these? cylinder rectangular prism sphere triangular prism