Archimedes Crossword

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Across
  1. 3. The ratio of a circle's circumference to its diameter
  2. 5. King of Syracuse
  3. 8. Positive-displacement pump
  4. 11. Approximation of...
  5. 12. War machines
  6. 13. Place of study
  7. 14. Upward force a fluid exerts on an object
Down
  1. 1. His birthplace
  2. 2. First Mathematician to calculate this
  3. 4. Ended in 219 BC
  4. 6. Attended school founded by...
  5. 7. One of his books
  6. 9. Shouted this running through the streets
  7. 10. First work