liometopum Messages 126 Reaction score 24 Thread starter Mar 2, 2013 #1 What is the circumference of a four dimensional sphere?
micromass Staff Emeritus Science Advisor Homework Helper Insights Author Messages 22,170 Reaction score 3,335 Mar 2, 2013 #2 [itex]2\pi R[/itex], I guess.
mathman Science Advisor Homework Helper Messages 8,130 Reaction score 575 Mar 3, 2013 #3 http://www.sjsu.edu/faculty/watkins/ndim.htm 2π2R3 is surface area.