#include <stdio.h>
void main ()
{
int radius;
float area;
/*Prompts the user to enter a value for the radius. */
printf("Please Enter An Integer:");
scanf("%d", &radius);
/* Calculates the area. */
area = radius * radius * 3.14;
/*Prints The area out to the user */
printf("Area = %f\n",area);
}