Crossword Puzzle

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Across
  1. 3. Intersecting lines create them
  2. 4. A mirrored image
  3. 6. Doesn't change shape or size after movement
  4. 10. Same
  5. 11. Has a leg
  6. 13. Comparison of two numbers
  7. 14. The halfway point
  8. 16. Can't be a fraction
  9. 18. Can draw a perfect circle
  10. 19. Square, Rectangle, Rhombus
  11. 20. Seperate name for subtraction
Down
  1. 1. The number before the x
  2. 2. Number with a known value, often is alone
  3. 5. Has no length or width
  4. 7. Up, Down, Left, Right
  5. 8. Has three terms
  6. 9. Theorem involving a triangle and hypotenuse
  7. 12. An exact spot
  8. 15. One term expression
  9. 17. Minimum of two numbers or variables