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Circles Around a Circle (
Posted on 20130807
)
Circles C
_{1}
, C
_{2}
, ... C
_{n}
( n≥3 and each with radius r ) are externally tangent
to a circle of radius R. Find the ratio r/R (in terms of n) if each of the
n circles is externally tangent to both of its neighbors.
See The Solution
Submitted by
Bractals
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Subject
Author
Date
another way
broll
20130808 01:33:44
Not on vacation (spoiler)
Steve Herman
20130807 21:33:11
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