A cylindrical roller made or iron is 1.2 m long. Its internal radius i – McqOptions

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1.	A cylindrical roller made or iron is 1.2 m long. Its internal radius is 24 cm and thickness of the iron sheet used in making the roller is 15 cm. What is the mass (in kg) of the roller, if 1 cm3 of iron has 8 g mass?
A.	892.8 π
B.	907.2 π
C.	846.72 π
D.	845.75 π
Answer» C. 846.72 π

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