Steven's Crossword puzzle

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Across
  1. 3. is another number that when multiplied by its self twice it equals the given number
  2. 7. a number that is a cube of a whole number
  3. 8. a grid formed by the intersections of two number lines
  4. 10. the horizontal number line on a coordinate plane
  5. 13. a decimal that ends
  6. 15. a decimal that repeats the same digit
  7. 17. the number of the vertical units a point from the origin
  8. 19. a number that can be written in the form a/b
  9. 20. x,y gives the coordinates of the location of a point
Down
  1. 1. the vertical number line on a coordinate plane
  2. 2. the longest side of a right triangle
  3. 4. a number that is a square of a whole number
  4. 5. a number of a horizontal units a point is from the origin
  5. 6. the two shortest sides of a right triangle
  6. 9. an equation that shows the relationship between the legs and the hypotenuse
  7. 11. the axes divide the plain into four sections
  8. 12. 0,0 the point where the axes intersect
  9. 14. numbers that can't be written in the form a/b
  10. 16. is another number that when multiplied by itself its equal to the given number
  11. 18. all rational and irrational numbers