Mathematics holiday home work

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Across
  1. 5. Point where coordinate is 0,0
  2. 7. Sum of two angles is 180 degree
  3. 9. Another name for Y coordinate
  4. 10. Graph formed by linear equation in two variable
  5. 11. Person who invented Cartesian System
  6. 12. A number that can be written in p/q form
  7. 13. Angle greater than 180 degree
Down
  1. 1. Sum of two angles is 90 degree
  2. 2. Another name for x coordinate
  3. 3. Equation which has 1 or more than 1 term
  4. 4. A number that is non recuring nor ending
  5. 6. Angle between 0 and 90 degree
  6. 8. Numbers of rational number between 1 and 1.01