#include <iostream>
#include <cmath>
using namespace std;
int main()
{
double a,b,ha,Slat,R,Ssf;
cout << " introdu latura bazei a= "; cin >> a;
cout << " introdu muchia laterala b= "; cin >> b;
ha=sqrt(b*b-(a/2)*(a/2));
cout << ha << "\n";
Slat=(double)1/2*6*a*ha;
cout << " Suprafata laterala = " << Slat << "\n";
cout << " introdu raza sferei R= "; cin >> R;
Ssf=(double)4*3.14*R*R;
cout << " Aria suprafetei sferice = " << Ssf;
return 0;
}