966. Triangle Circle Intersection

Let I(a,b,c) be the largest possible area of intersection between a triangle of side lengths a,b,c and a circle which has the same area as the triangle.
For example I(3,4,5)4.593049 and I(3,4,6)3.552564.

Find the sum of I(a,b,c) for integers a,b,c such that 1abc<a+b and a+b+c200.
Give your answer rounded to two digits after the decimal point.

966. 三角形与圆形的交

现有一个三边长分别为 a,b,c 的三角形和一个与这个三角形等面积的圆形。记:叠合这两个图形后,重叠部分面积的最大可能值是 l(a,b,c)
例如,I(3,4,5)4.593049I(3,4,6)3.552564

l(a,b,c) 之和,其中 (a,b,c) 取遍满足 1abc<a+ba+b+c200(a,b,c)。将你的答案四舍五入至小数点后两位。


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