Across
- 5. A three-dimensional shape with a polygonal base and flat sides
- 6. A three-dimensional shape with a curved surface and no edges
- 7. A flat, two-dimensional shape with three sides
- 8. A three-dimensional shape with a flat base and a vertex
- 10. A three-dimensional shape with four faces and six vertices
- 12. A three-dimensional shape with a circular base and curved sides
- 13. A flat, two-dimensional shape with eight sides
- 15. A flat, two-dimensional shape with an infinite number of sides
- 16. A three-dimensional shape with no edges or vertices
- 17. A three-dimensional shape with six faces and eight vertices
- 18. A flat, two-dimensional shape with five sides
Down
- 1. A three-dimensional shape with a circular base and flat sides
- 2. A flat, two-dimensional shape with four sides and unequal lengths
- 3. A three-dimensional shape with one circular base and one vertex
- 4. A flat, two-dimensional shape with four sides and four right angles
- 8. A flat, two-dimensional shape with four sides and one right angle
- 9. A flat, two-dimensional shape with six sides
- 11. A three-dimensional shape with eight faces and twelve edges
- 14. A three-dimensional shape with twenty faces and thirty edges