Across
- 3. insects
- 5. symbol of magic
- 7. six-sides
- 9. bleak and lonely
- 11. four-legged friends
- 13. triple advantage
- 14. intersecting equilateral triangles
- 15. one building three homes
- 16. mythical creature
- 17. star
- 18. 2D figure
Down
- 1. all the same
- 2. quadrangle
- 4. scale with five notes
- 6. shades of gray
- 8. coordinate plane
- 10. swim, bike, run
- 12. three-sided polygon
- 13. three-legged stand
- 14. 3D