Maths Crossword puzzel

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Across
  1. 3. number with no decimal or fractional part, from the set of negative and positive numbers.
  2. 5. all the positeve integers exept 0
  3. 9. line which has one end point
  4. 10. specific way of data representation using rectangular bars,
  5. 11. line that meet at a single point.
  6. 12. collection of points
Down
  1. 1. A line which has two end points
  2. 2. a shape that can be closed or open
  3. 4. lines which never intersect each other
  4. 6. device to measure line segment
  5. 7. An integer which is less than zero.
  6. 8. a polygon having four sides