Fibonacci Frenzy

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Across
  1. 2. Number Fibonacci is known for showing to the rest of the world
  2. 4. A book which Fibonacci made in 1202 meaning "the book of calculation"
  3. 6. Fibonacci's birthplace
  4. 9. Another concept Fibonacci made close to the Fibonacci sequence
  5. 11. What kind of numbers take up 2/3 of the Fibonacci sequence
  6. 12. A rectangle with side lengths in the ratio of the Golden Ratio, known for its aesthetic appeal and connection to Fibonacci numbers.
Down
  1. 1. The study of numbers, patterns, and relationships, including the Fibonacci sequence.
  2. 3. A famous problem involving the breeding of rabbits in "Liber Abaci."
  3. 5. 15th Number in the Fibonacci Sequence
  4. 7. 1, 1, 2, 3, 5, 8, 13, ___ (the Fibonacci sequence)
  5. 8. What is Fibonacci's first name
  6. 10. A logarithmic spiral found in nature that expands by a factor proportional to the Golden Ratio.