//uisng Heron's Formula
float first, second, third, semiperimeter, area;
cout << "Input the first side of the triangle: ";
cin >> first;
cout << "Input the first side of the triangle: ";
cin >> second;
cout << "Input the third side of the triangle: ";
cin >> third;
semiperimeter = (first + second + third)/2;
area = sqrt (semiperimeter*(semiperimeter-first)*(semiperimeter-second)*(semiperimeter-third));
cout << "The area of the triangle is " << area << endl;#include<iostream>
using namespace std;
int main()
{
float b, h, area;
cout<<"Enter Base length of Triangle: ";
cin>>b;
cout<<"Enter Height length of Triangle: ";
cin>>h;
area = 0.5*b*h;
cout<<"
Area = "<<area;
cout<<endl;
return 0;
}#include<iostream>
using namespace std;
int main()
{
float b, h, area;
cout<<"Enter Base length of Triangle: ";
cin>>b;
cout<<"Enter Height length of Triangle: ";
cin>>h;
area = 0.5*b*h;
cout<<"
Area = "<<area;
cout<<endl;
return 0;
}#include<iostream>
using namespace std;
int main()
{
float b, h, area;
cout<<"Enter Base length of Triangle: ";
cin>>b;
cout<<"Enter Height length of Triangle: ";
cin>>h;
area = 0.5*b*h;
cout<<"
Area = "<<area;
cout<<endl;
return 0;
}#include<iostream>
using namespace std;
int main()
{
float b, h, area;
cout<<"Enter Base length of Triangle: ";
cin>>b;
cout<<"Enter Height length of Triangle: ";
cin>>h;
area = 0.5*b*h;
cout<<"
Area = "<<area;
cout<<endl;
return 0;
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