Hollow circular cylinder of inner radius 15 cm and outer radius 16 cm is made of iron, if height of the cylinder is 63 cm. How much iron is required to construct hollow circular cylinder?
A6248 cm3
B6348 cm3
C6138 cm3
D6156 cm3
A6248 cm3
B6348 cm3
C6138 cm3
D6156 cm3
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