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gman07 wrote:
A= pi r squared
Area of one hole * number of holes = total area
3.14*((1/2 diameter)^2) * number of holes
For example, stock 6x.009:
3.14*((0.5*.009)(0.5*.009)) * 6
= 0.000382
Or if you wanted to be more accurate you could use 3.14159265358979323846264338327950288419... for pi.
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