#include <iostream>

/* run this program using the console pauser or add your own getch, system("pause") or input loop */
using namespace std;
int Luas(int x,int y)
{
int hasil;
return hasil =x*y;}


float KLL(int r)
{ float keling,phi=22/7;
keling=2*phi*r;
return keling;
}
void cetakgaris(int n)
{ int i;
cout<<"\n\n";
for(i=0;i<=n;i++)
cout<<"-";cout<<"\n";
}
int main(int argc, char** argv) {
int p=0,l=0;
float K;
cout<<"Menghitung Luas Persegi 4"<<endl;
cout<<endl<<"Masukan Panjang : ";cin>>p;
cout<<endl<<"Masukan Lebar : ";cin>>l;
cout<<endl<<"Luas = "<< Luas(p,l);//pemanggilan fungsi
cetakgaris(20);//pemanggilan fungsi
cout<<"\n\n";
cout<<"Masukan jari : ";
cin>>l;
K=KLL(l);//pemanggilan fungsi
cout<<"Keliling Lingkaran = " <<K;
return 0;
}