Problems
Angles of triangle
Angles of triangle
The triangle is given. Find the value of its biggest angle.
\InputFile
The coordinates of triangle vertices are given. The coordinates of a vertex is a pair of integers not greater than $10^4$ by absolute value.
\OutputFile
Print the value of its biggest angle in degrees with $6$ decimal digits.
Input example #1
0 0 3 0 0 4
Output example #1
90.000000
Input example #4
-1 1 -10000 -10000 10000 10000
Output example #4
179.988541