contoh program C++ menghitung luas lingkaran ..!!
#include <conio.h>
#include <iostream.h>
void main ()
{
int p,r,L;
p=3.14;
cout<<"input r : ";
cin>>r;
cout<<endl;
L=p*(r*r);
cout<<"Luas Lingkaran = "<<L;
getch();
}
#include <iostream.h>
void main ()
{
int p,r,L;
p=3.14;
cout<<"input r : ";
cin>>r;
cout<<endl;
L=p*(r*r);
cout<<"Luas Lingkaran = "<<L;
getch();
}
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