Write a program to find area of a circle

Radius of circle is taken from user and Area is calculated

Select To use this code as it is.. select and copy paste this code into code.cpp file :)

1. #include <iostream.h>
2. #include <conio.h>
3. void main()
4. {
5. clrscr();
6. float r,a;
7. cout<<"enter radius ";
8. //Coding by: Snehil Khanor
9. //http://WapCPP.blogspot.com
10. cin>>r;
11. a=3.14*r*r;
12. cout<<"The area is "<<a;
13. getch();
14. }