Question

how many cubic centimetres of iron is required to construct a open box whose external dimensions are 36, 25 and 16.5 cm provided the thickness of the iron is 1.5 cm. if one cubic cm of iron weighs 7.5g find the weight of the box​

Answer 1

Step-by-step explanation:

Internal Length (l) = 36-1.5 = 34.5

Internal Breadth (b)= 25-1.5 = 23.5

Internal Height (h) = 16.5 - 1.5 = 15

Volume of box = Iron required = l x b x h

= 34.5 x 23.5 x 15

= 12161.25 cubic cm

Weight of Box = Volume x cubic weight

= 12161.25 x 7.5

= 91209.375 grams

= 91.209375 kg

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