Chittagong Higher Secondary 2017#8
Posted: Thu Mar 01, 2018 1:20 pm
Circles of radii $5,5,8$ and $\dfrac mn$ are mutually externally tangents to all the circles.Where $m$ and $n$ are relatively prime positive integers.Find $m+n$.
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samiul_samin wrote: ↑Thu Mar 01, 2018 1:20 pmScreenshot_2018-02-23-14-09-22-1-1.png
Circles of radii $5,5,8$ and $\dfrac mn$ are mutually externally tangents to all the circles.Where $m$ and $n$ are relatively prime positive integers.Find $m+n$.