Maths crossword puzzle

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