Maths crossword puzzle

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Across
  1. 1. name of x axis
  2. 3. name of y axis
  3. 4. h²= p²+b²
  4. 5. a number which has a non terminating and non reccuring decimal representation
  5. 9. angle less than 90*
  6. 10. polynomial of degree 2
Down
  1. 2. whose sum is 180*
  2. 6. a line intersecting more than two lines
  3. 7. a equation of degree 1
  4. 8. the coordinate axes divide the plane into four parts which are called _____