Quote:
Originally Posted by lukevanoort
Indeed, a quarter inch is not a half inch, but the equation for the area of a circle is pi*radius^2, and drill bits are measured in terms of diameter. So, a half inch bit has a quarter inch radius, and thus the area of the hole is pi*.25^2.
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Heh.
Yep. You're right.
I think I should probably put down me calc book and go find a nice grade school geometry book.