This is the source code of area of the triangle by using sides
#include<iostream.h>
#include<conio.h>
#include<math.h>
int main()
{
float a,b,c,S,Area;
cout<<"enter the value of first side:";
cin>>a;
cout<<"enter the value of second side:";
cin>>b;
cout<<"enter the value of third side:";
cin>>c;
S=(a+b+c)/2;
Area=sqrt(S*(S-a)*(S-b)*(S-c));
cout<<"this is the required area:"<<Area;
getch();
}
End
