What do you know ?

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Across
  1. 2. quadrilateral with all sides equal but no right angles
  2. 7. Triangle with all angles equal to 60 degrees
  3. 9. Two lines that meet at right-angles
  4. 10. Angle greater than 90 but less than 180 degrees
  5. 12. Angle greater than 180 degrees
  6. 13. Two lines that never meet
  7. 14. Angle less than 90 degrees
Down
  1. 1. Triangle with 2 sides and 2 angles equal
  2. 2. The highest value take away the smallest value
  3. 3. The value that occurs MOST in a list
  4. 4. Name of all 4-sided shapes
  5. 5. Quadrilateral with one pair of parallel lines
  6. 6. The MIDDLE value in an ordered list of numbers
  7. 8. An angle of 90 degrees
  8. 11. Triangle with no sides or angles equal