find the volume of iron require to make an open box whose external dimensions are 36 cm * 25cm* 16.5 cm and 1.5 cm thick throughout. if 1 cm3 of iron weighs 8.5 grams, find the weight of the empty of box in kilograms..

Answer 1

outside: (36)(25)(16.5) = 14850.00
inside: (34.5)(23.5)(15) = 12161.25
volume of material if a closed box: 2688.75 cm^3

Next, subtract the volume of the missing top.

Finally, just multiply that by the density to find the mass