2 ms·

Isn’t it double that? 2piR

• dwohnitmok 6y ago
  Ha of course. Looks like I still haven't internalized it.
• thyrsus 6y ago
  We're talking about a rope around the equator, right? Circumference = 2piradius is the same as circumference/2 = pi*radius so three more feet of circumference is 1.5 more feet of radius.