SOLUTION: A hollow metal cylinder is 3cm long, 4cm in external diameter and the metal is dmm thick. The density of the metal is 2.8g/cm3. Find the mass of the cylinder.

Question 1044232: A hollow metal cylinder is 3cm long, 4cm in external diameter and the metal is dmm thick. The density of the metal is 2.8g/cm3. Find the mass of the cylinder.
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The inside diameter is , or the inner radius is centimeters.

Volume of the hollow cylinder is .
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Mass will use density as a factor.
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Simplify in whatever way you prefer or need.
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