Maths crossword puzzle

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Across
  1. 1. Lines in the same plane that do not intersect
  2. 3. When the terms of a polynomial are ordered from highest to lowest degree
  3. 6. The line intersects 2 or more parallel line
  4. 9. A number that, when multiplied by itself, equals the number itself
  5. 11. A figure in which all angles are 90° and opposite sides are equal
  6. 13. Two termed polynomial
  7. 14. The set of all points in the space that are the same distance from the point called center
Down
  1. 2. A mathematical statement that describes values
  2. 4. The branch of math that studies relationships of lines, angles etc.
  3. 5. The branch of math that uses symbols to represent unknown numbers
  4. 7. Two numbers whose product is 1
  5. 8. A Number behind a variable
  6. 10. A polygon with ten sides
  7. 12. A letter representing a number or value that can change or vary