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Aryabhata (499 CE) gave the approximation π ≈ 3927/1250. He also called this an 'āsanna' meaning:
AExact
BApproximation
CWrong
DSacred
Answer & Solution
Correct answer: B. Approximation
Āsanna means 'approximation' in Sanskrit. Aryabhata realised that his value 3927/1250 = 3.1416 was only an approximation — not the exact value of π. Centuries later, Lambert (1761) formally proved π is irrational, confirming that no fraction could ever give it exactly.
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