Across
- 7. one of several parts that fit with others to make a whole
- 8. the space between two lines or planes that intersect
- 11. a triangle where all 3 sides are equal
- 13. a triangle with no equal sides
- 14. a three-sided polygon
- 16. being equal to something
- 18. an angle between 90 and 180 degrees
- 19. the act of changing in form or shape or appearance
- 20. lines that never intersect
Down
- 1. y=mx+b
- 2. all three sides have the same length
- 3. a triangle with 2 equal sides
- 4. the property created by the space between two objects
- 5. a triangle whose interior angles are all acute
- 6. two angles whose sum is a right angle
- 9. an angle less than 90 degrees but more than 0 degrees
- 10. when they are equal to each other
- 12. the outside angle of a polygon
- 15. an angle that is 90 degrees
- 17. on the same plane