#includeusing namespace std; class CCircle{ public : void setR(double pr){ cin>>r; }; void getPerimeter(){ double s=0; s=6.28*r; cout<<"the perimeter is "<

#includeusing namespace std; class CCircle{ public : void setR(double pr){ cin>>r; }; void getPerimeter(){ double s=0; s=6.28*r; cout<<"the perimeter is "<