HW 8a

#include <iostream>;
#include <cmath>;
#define PI 3.14159265
using namespace std;
double STORONA(int a, int b, double alpha,double &result)
{
    result = sqrt(a*a + b*a - 0.5*a*b*cos(alpha*PI/180));
    return result;
}
int main()
{
    int a, b;
    double alpha, c;
    cout << "Enter a,b,alpha";
    cin >> a >> b >> alpha;
    c=STORONA(a, b, alpha, c);
    cout << "c=" << c;


    system("pause");
    return 0;
}