1.

The difference between the areas of outside and inside surface of a cylindrical metallic pipe 14 cm long is \[\mathbf{132c}{{\mathbf{m}}^{\mathbf{2}}}\]. If the pipe is made of \[\mathbf{495c}{{\mathbf{m}}^{\mathbf{3}}}\] of metal, find the outer and inner radii of the pipe.

A. 4.5 cm and 3 cm
B. 3.5 cm and 2.0 cm
C. 5.0 cm and 3.5 cm
D. 4.0 cm and 2.5 cm
Answer» B. 3.5 cm and 2.0 cm


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