#include <iostream> #include <cmath> using namespace std; int main() { double r, a, x, y, z, c, d, e, S1, S2, S3, S4, F, p; cin>>r>>a>>x>>z>>c>>d>>e; S1 = 2*3.14*r; S2 = a*a; S3 = x*y; p = (c+d+e)/2; S4 = sqrt(p*(p-c)*(p-d)*(p-e)); F = max(max(S1, S2), max(S3, S4)); cout<<"Наибольшая фигура с площадью "; cout<<F; }