Maths questions

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Across
  1. 2. What is a polynomial of degree two called?
  2. 3. What is the x-coordinate of a point where a line crosses the x-axis called?
  3. 6. What is the longest chord of a circle called?
  4. 9. What is the total surface area of a sphere proportional to in terms of its radius?
  5. 10. What formula is used to calculate the area of a triangle?
  6. 11. What is a solid figure with one circular base and one vertex called?
  7. 14. What is the x-coordinate of a point where a line crosses the x-axis called?
  8. 15. What is the process of separating a polynomial into smaller polynomials called?
  9. 17. What is the constant term in a linear equation represented by
  10. 18. What is the median of the numbers 4, 6, 8, and 10?
  11. 20. What is the straight line joining two points on the circle called?
Down
  1. 1. What is the perimeter of a circle called?
  2. 4. What is the distance of a point from the origin in a Cartesian plane called?
  3. 5. What is the sum of all angles on a straight line in degrees?
  4. 7. What is a shape with four sides and four angles called?
  5. 8. What is a three-sided polygon called?
  6. 12. Which theorem states that the square of the hypotenuse is equal to the sum of the squares of the other two sides?
  7. 13. What are the coordinates of the origin in the Cartesian plane
  8. 16. What is the sum of the probabilities of all outcomes in a trial always equal to
  9. 19. What is the graphical representation of a data set called?