Across
- 4. mirror
- 8. identical
- 10. side angle side
- 12. big or small
- 13. angle angle side
- 15. ninety degrees
Down
- 1. eight sides
- 2. butterfly wings
- 3. ten sides
- 5. preimage and image
- 6. five sides
- 7. angle side angle
- 9. three sixty
- 11. side side side
- 14. six sides