A cylindrical tube open at both ends is made of iron sheet which is 2cm thick. If the outer diameter is 16cm and its length is 100cm , find how much cubic centimeters of iron have been used in making the tube?

We have,

Outer radius(R) = 8cm

Inner radius (r) = 6 cm

Height of cylinder (h) = 100 cm

So the volume of the metal used

  • 66
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