MATH_PENTATHALON

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Across
  1. 5. sr2
  2. 7. opposite/adjacent
  3. 8. (x,y) ex. (-5,7)
  4. 9. (-x,-y) on graph
Down
  1. 1. a^2+3x-b^7
  2. 2. adjacent/hypotenuse
  3. 3. a^2+b^2=c
  4. 4. opposite/hypotenuse
  5. 6. 346728