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Across 1. describes size change from preimage to image 4. when an image is congruent to its preimage 8. a mirror image or result of a reflection 10. a tessellation 11. more than one transformation at a time 13. the result of a transformation 14. change in position, size or shape of a figure 18. a transformation does this to a figure onto its image 19. Repeats itself along a straight line 20. transformation that uses circular motion

Down 2. a repeating pattern of figures that completely covers a plane without overlap or gaps 3. when the image is enlarged or reduced 5. used to identify image points 6. when line of reflection is perpendicular bisector of segment BB' 7. moves all points of a figure the same distance and direction 9. composition of translation followed by reflection 12. when a half turn maps a figure onto itself 15. dilation by a factor less than 1 16. an isometry that maps a figure onto itself 17. original figure in a transformation