Asked by Donna Marcins

A rectangular tube is being made. The outside of the tube is 15 cm long, 6 cm tall and 10 cm wide. The hollow core is in the middle and runs the length of the tube. How much metal is needed to make this tude?

Answers

Answered by R_scott
tube wall thickness?
Answered by oobleck
the volume of metal is just the cross-section area times the length.
If the walls have thickness x then the cross-section area of the metal is just

6*10 - (6-2x)(10-2x)
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