C++ Program to find Area of Circle

C++ Program to find Area of Circle #include<iostream.h> #include<conio.h> void main() {  float r,a;  clrscr();  cout<<"\n Enter Radius : ";  cin>>r;    a=3.14*r*r;  cout<<"\n Radius = "<<r;  cout<<"\n Area of Circle = "<<a;  getch(); }