anonymous
  • anonymous
You have to make a trunk of a cone (i.e. cone with a cut-off tip) out of a 2m x 1m sheet of metal by cutting it out and wrapping it around. The diameter of the desired small opening is known (d=50mm) and the desired big opening has a known perimeter (P=2m). What are the measurements of this cut-out, in order to make maximum use of the sheet metal (i.e. max surface area)? At a minimum, I'd like to know how to "unwrap" a circle in what looks like to me as an ellipse section.
Geometry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
|dw:1377545323907:dw| The pic shows the basic idea. I have trouble unwrapping the thing and wrapping it back in 3D.

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