Across
- 2. planes/planes that do not intersect
- 6. triangle/1 right angle
- 8. which intersects 2 or more coplanar lines
- 9. lines/non-coplanar lines that do not intersect
- 11. triangle/3 acute angles
- 15. of a polygon/number of square units within a polygon
- 16. equal to 180 degrees
- 18. angles/2 angles that equal to 90 degrees
- 19. or glide
- 23. polygon/congruent sides and congruent angles
Down
- 1. bisector/ray that divides the angle into equal parts
- 3. or mirror image
- 4. equal to 90 degrees
- 5. lines/2 lines that meet to form right angles
- 7. triangle/3 sides congruent
- 8. that can be proven
- 10. angles/2 angles that equal to 180 degrees
- 12. of the lengths of a polygon's sides
- 13. triangle/1 obtuse angle
- 14. figures/figures with the same shape and size
- 17. triangle/3 congruent angles
- 20. or rotation
- 21. triangle/at least two sides are congruent
- 22. triangle/no congruent sides