1777 Area Ratio
题目描述
To make things easier, WishingBone decides to put this simple geometry problem at the beginning. Given a triangle, what is the ratio of the area of its inscribed circle to that of its circum circle?
输入格式:
9 integers x1 y1 z1 x2 y2 z2 x3 y3 z3 on one line (-1000 <= x, y, z <= 1000), the three coordinates of the triangle. The three coordinates will not appear collinear.
Process to the end of file.
输出格式:
One ratio per line, exact to three digits to the right of the decimal point.
输入样例 复制
0 0 0 0 0 1 0 1 0
输出样例
复制
0.172
