Zadanie 19-20

#include<iostream>
#include <iomanip>
#include<cmath>
using namespace std;

int POLE_TROJKATA(float a, float h)
{
    float pole;
    pole=(a*h)/2;
    cout << pole;
}
float odcinek(float x1, float y1, float x2, float y2)
{
    return sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1));
}
int main()
{
    int a,h;
    cout << "ZADANIE 19"<<endl;
    cout << "Podaj bok trojkata: ";
    cin >>a;
    cout << "Podaj wysokosc trojkata: ";
    cin >>h;
    POLE_TROJKATA(a,h);
    cout << endl;
cout << "ZADANIE 20" << endl;
    float x1,y1,x2,y2,x3,y3,d,e,f,po,pt;
       cout << "x1=";
       cin >>x1;
     cout << "y1=";
     cin >>y1;
      cout << "x2=";
      cin >>x2;
       cout << "y2=";
       cin >>y2;
        cout << "x3=";
        cin >>x3;
         cout << "y3=";
         cin >>y3;
    d=odcinek(x1,y1,x2,y2);
    e=odcinek(x2,y2,x3,y3);
    f=odcinek(x3,y3,x1,y1);
    po=(d+e+f)/2;
    pt=sqrt(po*(po-d)*(po-e)*(po-f));
    cout << "Pole trojkata wynosi: " << pt;


    return 0;
}