As per your syllabus, ZU CHONGZHI's 'Close Ratio' (Milü) approximation…

Question

As per your syllabus, ZU CHONGZHI's 'Close Ratio' (Milü) approximation of π is which fraction — accurate for over 800 years as the best rational approximation?

Accepted Answer

B. 355/113 ≈ 3.1415929

As per your syllabus, Zu Chongzhi (480 CE) found 355/113 as the 'Milü' — accurate to 6 decimal places.
The other approximations are by different mathematicians and less accurate.

Answer

377/120 ≈ 3.14167

Answer

22/7 ≈ 3.1428

Answer

√10 ≈ 3.1622

As per your syllabus, ZU CHONGZHI's 'Close Ratio' (Milü) approximation of π is which fraction — accurate for over 800 years as the best rational approximation?

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