Maths crossword puzzle

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Across
  1. 4. with start from 0 to infinite are _____numbers
  2. 5. Between any two rationalnumbers there are____rationalnumbers
  3. 8. mostly available to us in an unorganised form
  4. 10. am on left side of number line.I am less than zero.What is my value.I am called ___number
Down
  1. 1. I represent a group data,i show frequencies for intervals of values.What am i?
  2. 2. a linesegment connecting two nonconsecutive vertices of a polygon
  3. 3. Graph that shows the relationship between a whole and its part
  4. 6. a closed fourlined polygon with all sides same
  5. 7. It gives the number of times that a particular entry occurs
  6. 9. A property of a triangle in which all sides sum measure 180°