A hollow cylinder is made up of metal. The difference between the oute – McqOptions

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1.	A hollow cylinder is made up of metal. The difference between the outer and the inner curved surface area of this cylinder is 352 cm2. The height of the cylinder is 28 cm. If the total surface area of this hollow cylinder is 2640 cm2, then what are the inner and outer radii (in cm)?
A.	4, 6
B.	10, 12
C.	8, 10
D.	6, 8
Answer» E.

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