Across
- 3. A polygon with eight sides.
- 7. A flip of a figure over a line.
- 10. A property where one half is a mirror image of the other.
- 12. An exact location in space, with no size.
- 14. Part of a line with two endpoints.
- 15. An angle that measures exactly 90 degrees.
- 19. A turn of a figure around a point.
- 21. A polygon with six sides.
Down
- 1. An angle that measures less than 90 degrees.
- 2. Figures that are the same shape and size.
- 4. A slide of a figure without turning it.
- 5. Lines that cross at a point.
- 6. An angle that measures more than 90 but less than 180 degrees.
- 7. A quadrilateral with four right angles and opposite sides equal.
- 8. Figures with the same shape but not necessarily the same size.
- 9. A quadrilateral with four equal sides and four right angles.
- 11. Lines in a plane that never meet and stay the same distance apart.
- 13. Lines that intersect to form right angles.
- 16. An angle that measures exactly 180 degrees.
- 17. Part of a line with one endpoint, going on forever in one direction.
- 18. A polygon with five sides.
- 20. A straight path that goes on forever in both directions.
