6 circles problem

by KKW
Tags: circles
KKW is offline
Jul8-08, 08:02 AM
P: 4
If you inscribe 4 circles inside a bigger circle and then add another smaller circle, touching the other 4 circles, what is the radius of the smallest circle (in the centre) if the radius of the biggest circle is 10cm?
Phys.Org News Partner Mathematics news on Phys.org
Researchers help Boston Marathon organizers plan for 2014 race
'Math detective' analyzes odds for suspicious lottery wins
Pseudo-mathematics and financial charlatanism
dirk_mec1 is offline
Jul8-08, 09:26 AM
P: 664
Is the radius of the four circles the same?
Borek is online now
Jul8-08, 10:51 AM
Borek's Avatar
P: 22,656
Assuming four circles are identical, that's everything you may need. Think how these are related to the radii of circles in question.
Attached Thumbnails

Register to reply

Related Discussions
Problem of overlapping circles Calculus & Beyond Homework 2
Interesting geometric problem with circles Calculus 0
Need Help With Geometry Problem (Circles) Precalculus Mathematics Homework 2
Problem Solving question with circles Precalculus Mathematics Homework 4
Fun Problem: Area of Overlapping circles Calculus 2