buff words

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Across
  1. 4. where the coordinates are (0,0)
  2. 6. the distance around a shape
  3. 7. a negative number
  4. 9. the space on the 2D side of a shape
  5. 11. the relationship on a dotted graph
  6. 14. the distance of half a circle
  7. 15. when a number is a decimal
  8. 18. is the changing of position of a figure on a coordinate plane
  9. 19. the side of a triangle that is unknown
Down
  1. 1. theorem when you find the missing side of a triangle
  2. 2. is y
  3. 3. a figure that is moved from one place to another
  4. 5. when a figure gets bigger/smaller
  5. 8. when an object moves on its axis
  6. 10. when two different numbers have the same value
  7. 12. the amount of mass a shape has inside of it
  8. 13. when an object moves to the left in a circular motion
  9. 16. when an object moves to the right in a circular motion
  10. 17. the bottom of a shape