- #1
Paulo Serrano
- 52
- 0
Homework Statement
I need the ratio like in the image below
http://img228.imageshack.us/img228/4015/foiessa.jpg [Broken]
I guess as a function of D.
Homework Equations
Volume of a cylinder: pi*r^2*h
Area: 2*pi*r*(h+r)
The Attempt at a Solution
No clue.
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