Great Greek Thinkers

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Across
  1. 3. student of Socrates and kept written records; started a school
  2. 4. student of Plato; tutor to Alexander the Great
  3. 6. Father of Medicine; created oath for doctors to follow
  4. 9. Archimedes invented the world's first _______
Down
  1. 1. doctors swear to do right by their patient and be ethical
  2. 2. known for questioning; put to death
  3. 3. A squared + B squared = C squared
  4. 5. inventor/scientist; calculated pi
  5. 7. introduced squared numbers; created Pythagorean Theorem
  6. 8. known for Geometry & his book "The Elements"