Question: Instead of using a solid iron beam, structural engineers and contractors use I-beams to save materials and money. How many I-beams can be molded from

Instead of using a solid iron beam, structural engineers and contractors use I-beams to save materials and money. How many I-beams can be molded from the same amount of iron contained in the solid iron beam as shown in Fig.2.12?

1.00 in 1.00 in. 6.00 in. 20.O ft 1.00 in. 8.00 in.

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