A=arccos((r-h)/h))pirr/180-1/2(r-h)sqt(2rh-hh)

來源: jinjing 於 2010-03-28 19:33:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

h is a root of above equation. I'm sorry,I'm total wrong, as I think A is circlar sector.

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

A=arccos((r-h)/h))*pi*r*r/180-1/2(r-h)sqt(2rh-h*h)