Maths crossword puzzle

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Across
  1. 1. Degree 2 equation
  2. 6. Method to solve equation
  3. 7. trig ratio:opp/hyp
  4. 8. angle symbol in trig
Down
  1. 2. perimeter of circle
  2. 3. longest side of triangle
  3. 4. likelihood of outcome
  4. 5. Geometry with x and y