Across
- 1. corners of a polygon
- 3. one angle 90
- 5. shape with various sides
- 6. the study of shapes
- 9. no sides the same
- 12. all sides the same
- 13. angles angles across each other formed by two intersecting lines
- 14. one angle greater than 90
- 15. segments connected on a polygon
- 17. bottom side of a triangle
- 18. sides of isosceles or right triangle
- 19. all angles less than 90
- 21. statement assumed true without proof
Down
- 2. polygon with three sides
- 4. the longest side of a right triangle
- 7. angle, equal to 90 degrees
- 8. two sides the same
- 10. formed by two connected rays
- 11. the study of patterns and numbers
- 16. triangle with all sides the same
- 20. statement that needs to be proved