Source Code:
#include<stdio.h>int main() {
int rad;
float PI = 3.14, area, ci;
printf("\nEnter radius of circle: ");
scanf("%d", &rad);
area = PI * rad * rad;
printf("\nArea of circle : %f ", area);
ci = 2 * PI * rad;
printf("\nCircumference : %f ", ci);
return (0);
}
Output:
Enter radius of a circle : 1
Area of circle : 3.14
Circumference : 6.28
