Across
- 2. a transformation that uses a line like a mirror to reflect a figure
- 6. the side between two angles
- 7. a rule that is accepted without proof
- 8. whenever the side lengths and the angles that are touching are the same
- 9. the angle between two sides
- 12. a figure with n sides
- 15. a triangle with all three congruent sides
- 16. a transformation that preserves shape but not size
- 19. a triangle with at least two congruent sides
- 20. point, line, and plane
Down
- 1. the sides other than the hypotenuse
- 3. a triangle with no congruent sides
- 4. triangles that are the shape, but not necessarily the same size
- 5. angles whose sum is 90°
- 10. when triangles have the same shape and size
- 11. a transformation that preserves length and angle measure
- 13. the two angles formed by the base and a leg
- 14. moves every point of a figure the same distance in the same direction
- 17. a rule that can be proven
- 18. the longest side of a right triangle, which is across from the right angle