Archimedes' Twin Circles in an Arbelos

​
r
Archimedes' twin circles in an arbelos each have diameter
r(1-r)
when the diameter of the outer circle is 1.

External Links

Arbelos (Wolfram MathWorld)

Permanent Citation

Ben Alpert
​
​"Archimedes' Twin Circles in an Arbelos"​
​http://demonstrations.wolfram.com/ArchimedesTwinCirclesInAnArbelos/​
​Wolfram Demonstrations Project​
​Published: March 7, 2011