Maths Crossword

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Across
  1. 3. distance of a point from the y axis
  2. 6. perimeter of a circle
  3. 7. performing an experiment randomly
Down
  1. 1. largest side of a right triangle
  2. 2. a polynomial of degree 2
  3. 4. part of a circle enclosed by 2 radii and arc
  4. 5. measure of central tendency of given data