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Across
  1. 2. Discovered the value of Pi.
  2. 3. The founder of trigonometry.
  3. 4. World-famous mathematician known for his exact calculation.
  4. 6. Renowned for his discovery in the subdivision of geometry.
Down
  1. 1. Popularly known as the ‘Father of Algebra.’
  2. 2. Discovered many philosophical theories and contributed to mathematics and Platonism.
  3. 5. Greek mathematician often referred to as the "father of geometry".