nayahlizruiz6719 nayahlizruiz6719 30-01-2024 Mathematics contestada A hollow iron pipe is 21 cm long, and its external diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs (8 , g/cm³), then the weight of the pipe is: a. (22.4 , kg) b. (28 , kg) c. (32 , kg) d. (36 , kg)
