The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1 while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I1 /I2 is

The cross-sections of two solid bars made of the same material are sho

1.	The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1 while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I₁ /I₂ is
A.	1/
B.	2/
C.	/3
D.	/6
Answer» D. /6

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The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1 while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I1 /I2 is

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The cross-sections of two solid bars made of the same material are shown in the figure. The square cross-section has flexural (bending) rigidity I1 while the circular cross-section has flexural rigidity I2. Both sections have the same cross-sectional area. The ratio I₁ /I₂ is