#include
using namespace std;
class Distance{
private:
int feet;
float inches;
public:
Distance() : feet(0), inches(0.0){ }
Distance(int ft, float in) : feet(ft), inches(in){ }
void showdist(){
cout << feet << "\'-" << inches << '\"';
}
friend float square(Distance);
};
float square(Distance d){
float fltfeet = d.feet + d.inches/12;
float feetsqrd = fltfeet * fltfeet;
return feetsqrd;
}
int main(){
Distance dist(3, 6.0);
float sqft;
sqft = square(dist);
dist.showdist();
cout << sqft;
return 0;
}