Euler's Geometry
A triangle has sides 9,12,15 . It's circumcircle has a radius R .Its incircle has a radius r . Let the the distance between the incircle 's center and the circumcircle's center be d.
If (d^2) has the form A/B
then write A+B+r+2R as your answer.
Post your solutions.
The answer is 67.
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1 solution
I made this Q based on the following equation by euler.Go to this link
http://en.wikipedia.org/wiki/Euler%27s theorem in_geometry