Algorithm of 11152 - Colourful Flowers

Problem Description Link

Algorithm:

This is a simple problem .However you can follow this technique .
In this problem if you just find the radius of inner circle of triangle and outer circle of triangle
 then you can calculate easily.  determine the both radius formula are
outer_circle_radius=(a*b*c)/(4*area_of_triangle);
inner_circle_radius=(area_of_triangle/s);
s=sqrt(s*(s-a)*(s-b)*(s-c));