C++ Döngüler

 
  #include <iostream> 
  #include <cstdlib> 
  #include <math.h> 
  #include <locale.h> 
  using namespace std; 
   
  int main() 
  { 
      setlocale(LC_ALL,"Turkish"); 
     for( int a =1; a <= 10; a++ ) 
     { 
         double alan=a*a*M_PI; 
         double cevre=2*M_PI*a; 
         cout <<"Yarıçap\t"<< a <<"\talan\t"<<alan<<"\tçevre\t"<<cevre<<endl; 
     } 
      system("pause"); 
      return 0; 
  }