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. cin>>r;
9. a=3.14*r*r;
10. cout<<”The area is “<<a;
11. getch();
12. }