Multiple choice general knowledge math & puzzles

Who first used pi as a constant ratio?

  1. Babylonians

  2. Persians

  3. Greeks

  4. Romans

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A Correct answer
Explanation

The Babylonians (1900-1600 BCE) were among the first civilizations to recognize π as a constant ratio, approximating it as 25/8 (about 3.125). They calculated the circumference of a circle as 3 times the diameter plus a small fraction. While Archimedes later refined the value, evidence shows Babylonian mathematicians understood the constant nature of this ratio centuries earlier. Ancient Egyptian mathematics also used a similar approximation.