Across
- 3. Perpendicular segment of a triangle.
- 5. Always 4
- 8. 9 sides
- 12. 8 sides
- 13. Perimeter of a circle
- 14. Formed by switching the thoughts and the conclusion.
- 15. All the sides together.
- 16. 90'
- 17. From point to point
- 18. Inside the perimeter.
- 19. Space between two intersecting lines.
- 20. Line joining of two sides of a triangle.
Down
- 1. 2 sides the same and one different.
- 2. Flat surface.
- 4. It crosses in perpendicular direction.
- 6. opposite of curve.
- 7. A result that has been proved to be true.
- 9. It's a dot
- 10. Two angles are not congruent.
- 11. Less than 90'
- 12. 2 sides less than the heptagon