One Circle Revolving Around Another Date: 05/26/99 at 09:16:45
From: Mike Aumueller Subject: Circle circumference/revolution
question If one circle has a circumference of 7.8 cm and a
second circle has a circumference of 2.6 cm, how many
revolutions will the smaller circle make while rotating around
the perimeter of the larger circle? I have tried for hours to
create a formula that will answer this question, but I have had
no success. Help. I have tried the following: C1/C2 =
Revolution1/Revolution2 where I have measured the revolution of
circle 2 around circle 1. But I would like to figure out the
answer without actually measuring. Thanks. Date: 05/26/99 at
12:18:47 From: Doctor Rick Subject: Re: Circle
circumference/revolution question Hi, Mike. This is pretty hard
to picture, because it involves a sort of "motion-picture
geometry." I hope I can help a little. Let the center of the big
circle (radius R1) be A and let the center of the small circle
(radius R2) be B. Label one point on the circumference of th