Pi Approximation Day

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Across
  1. 8. The latest world record of calculating the value of pi is upto ___ digits
  2. 9. The current world record holder for memorizing and reciting 70030 digits of the value of pi
  3. 10. Pi represents an ____ number
  4. 11. The ratio of the _____ of any circle to the diameter of that circle is termed as Pi
Down
  1. 1. The British Mathematician who introduced the symbol of pi in 1706
  2. 2. Branches of mathematics where pi is very commonly used are _____, number theory, calculus
  3. 3. On this day a more recognized celebration of the mathematical symbol Pi happens
  4. 4. The ancient mathematician who developed the polygonal approach to approximate the value of pi
  5. 5. The decimal representation of pi is _____ and ___
  6. 6. Organised the first official pi day in 1988
  7. 7. Swiss mathematician who popularised the pi symbol in 1737