Geometry definitions

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Across
  1. 3. translation vector
  2. 6. <a,b>
  3. 9. transformation across
  4. 11. maps to itself
  5. 12. set of points
  6. 13. changes shape smaller
  7. 14. a rigid motion
  8. 16. rotated about
  9. 17. changes
Down
  1. 1. rigid motion
  2. 2. changes shape larger
  3. 3. p formed by
  4. 4. changes size
  5. 5. fixed point
  6. 7. slide
  7. 8. direction & length
  8. 10. divides a plane
  9. 15. corresponding points