Across
- 3. =
- 6. The area or distance around a circle
- 10. a^2 + b^2 = c^2
- 11. A unproven statement
- 14. A triangle with all unequal sides and angles
- 17. A trapezoid with equal sides and angles
- 18. A angle less than 90 degrees
- 20. A pair of supplementary angles
Down
- 1. A flat surface or area
- 2. corner of a shape
- 4. ━━━━
- 5. = △
- 7. ◣ ⦜
- 8. ◢
- 9. ▭
- 12. Angle more than 90 degrees
- 13. hypothesis and conclusion are reversed
- 15. 🛑
- 16. 10 sided shape with equal sides
- 19. base multiplied by height