The moment of inertia of a hollow circular section whose external diameter is 8

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Question

The moment of inertia of a hollow circular section whose external diameter is 8 cm and internal diameter is 6 cm, about centroidal axis, is

Options:

A . 437.5 cm⁴

B . 337.5 cm⁴

C . 237.5 cm⁴

D . 137.5 cm⁴

Answer: Option D
Answer: (d).137.5 cm⁴

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