Across
- 1. / a very dark color
- 4. / turning
- 7. / =
- 9. / the opposite of negative
- 10. / two figures with the same shape but different size
- 12. / the full word for "math"
- 15. / a + b = 90°
- 16. / a kind of transformation (moving a figure)
- 17. / 0 < a < 90°
- 19. / the plural form of the word "vertex"
- 20. / two lines that never cross each other
Down
- 2. / two figures with the same shape and same size
- 3. / a = 180°
- 5. / °
- 6. / -
- 8. / 90° < a < 180°
- 11. / the image you can see in a mirror
- 13. / a + b = 180°
- 14. / the noun for the verb "transform"
- 18. / 180° < a < 360°
- 20. / +