h is a root of above equation. I'm sorry,I'm total wrong, as I think A is circlar sector.
A=arccos((r-h)/h))*pi*r*r/180-1/2(r-h)sqt(2rh-h*h)
本帖于 2010-04-08 18:00:37 时间, 由版主 于德利 编辑
h is a root of above equation. I'm sorry,I'm total wrong, as I think A is circlar sector.
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