Math Term Croosword puzzle

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Across
  1. 3. a line that touches a circle at exactly one point
  2. 6. the point where the coordinate axes meet
  3. 7. a figure with both length and breadth
  4. 9. a symbol used to write a square root
  5. 11. the difference between any two consecutive terms of an A.P.
  6. 14. the longest chord of a circle
  7. 15. the midpoint value of two numbers
  8. 16. the value that satisfies an equation
Down
  1. 1. a triangle with all sides unequal
  2. 2. a polynomial of degree 2
  3. 4. the ratio of height to shadow length
  4. 5. a number that divides another exactly
  5. 8. the side opposite the right angle in a right-angled triangle
  6. 10. surface occupied by a shape
  7. 12. a number that multiplies a variable
  8. 13. the point where two lines meet