Across
- 3. tessellation A repeating pattern of congruent regular polygons that completely covers a plane with no gasps or overlaps.
- 4. A transformation across a line, called the line of reflection.
- 8. A repeating pattern of plane figures that completely covers a plane.
- 9. tessellation A repeating pattern formed by two or more regular polygons.
- 10. side interior angles A pair of angles that lie on the same side of the transversal and between the two lines.
- 11. angles A pair of angles that lie on the same side of the transversal and on the same sides of the other two lines.
- 13. angles Two angles whose measures have a sum of 180.
- 15. angles Two angles whose measures have a sum of 90.
- 18. lines Lines that are not coplanar.
- 19. A transformation about a Point P, also known as the center of rotation.
- 20. A transformation that changes the size of a figure but not its shape.
Down
- 1. A line that intersects two coplanar lines at two different points.
- 2. A transformation that shifts or slides every point of a figure or graph.
- 5. A transformation that does not change the size or shape of a figure.
- 6. interior angles A pair of nonadjacent angles that lie on opposite sides of the transversal and between the other two lines.
- 7. symmetry A figure that can be rotated about a point by an angle less than 360.
- 8. A change in the position,size, or shape of a figure or graph.
- 12. lines Lines that intersect at 90 angles.
- 14. symmetry A figure that can be reflected across a line so that the image coincides with the preimage.
- 16. lines Lines in the same plane that do not intersect.
- 17. exterior Angles A pair of angles that lie on opposite sides of the transversal and outside the other two lines.