Write a Program in C++ to Calculate the area of the circle until radius entered is zero using While Loop.

:-Write a Program in C++ to Calculate the area of the circle until radius entered is zero using While Loop.


#include<iostream.h>
#include<conio.h>
#include<math.h>  // for pow() function

main()
{
  float radius, area;
  cout<<"\n Enter the radius(to terminate enter 0):";

  cin>>radius;
  while(radius !=0)
  {
area= 3.14*pow(radius,2);

cout<<"area is  : "<<area <<"sq. units \n";

getch();

 cout<<"\n Enter the radius(to terminate enter 0):";

 cin>>radius;

  }

}

The Output of this program :-