Write a Program to print the Area of circle.

Area of Circle

#include <stdio.h>

#include <conio.h>

void main()

{

         float area, pie=3.14;

         int r;

         clrscr();

                    

                     printf ("Enter the Radius of circle:");

                     scanf ("%d",&r);

         area=pie* (r*r);

                     printf ("Area of circle is : %f",area);

         getch();

}

 

 

 OUTPUT

 

 Enter the Radius of circle:  5

Area of circle is : 78.500000_