Across
- 3. The amount of space inside a 3D shape
- 4. A triangle with three equal sides
- 8. A 12-sided polygon with all sides and angles equal
- 14. The total area of all the outside surfaces of a 3D shape
- 15. A pyramid whose base is a triangle
Down
- 1. A pyramid with a regular polygon as its base
- 2. Shapes that are the same size and shape
- 5. A flat shape with three or more straight sides
- 6. A prism with two triangular bases
- 7. A 3D shape with flat faces, straight edges, and vertices
- 9. A prism whose base is a regular polygon
- 10. A triangle with at least two equal sides
- 11. A 3D shape with 6 equal square faces
- 12. The amount a container can hold
- 13. A flat pattern that can be folded to make a 3D shape