Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

area of a sphere



In the spirit of "ask and ye shall receive", can someone point me to a
simple proof that the area of a sphere is that of four great
circles? Even I can prove it with calculus, but there must be a simple
geometric proof??? Thanks. Crawford