Maths crossword

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Across
  1. 2. half a diameter
  2. 5. the part or segment of the circumference of a circle
  3. 7. it is the value of the middle-most observation of data
  4. 8. two lines intersect at a right angle
  5. 10. angles in a semicircle is a ____ angle
  6. 11. volume of a ____ = 1/3πr²h
  7. 14. a polynomial of two terminal
Down
  1. 1. a graphical representation that organize a group of data points into user-specified ranges
  2. 3. a collection of information are called
  3. 4. a linear equation in two variables has ____ solution
  4. 6. two circles of the same radii are
  5. 9. congruent arcs of circle subtend equal angles at
  6. 12. the point where X'X and Y'Y cross
  7. 13. angles in the same segment of a circle are