Described

Calculate perimeter of the circle described by a triangle with sides 478, 255, 352.

Correct result:

p =  1539.5

Solution:

 s=a+b+c2=478+255+3522=542.5 r=abc4S=abc4s(s−a)(s−b)(s−c)=245.02 p=2πr=1539.5

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