C Program to find area and circumference of circle

#include<stdio.h>

int main()
{
int rad;
float PI=3.14,area,ci;

clrscr();

printf("\nEnter radius of circle: ");
scanf("%d",&rad);

area = PI * rad * rad;
printf("\nArea of circle : %f ",area);

ci = 2 * PI * rad;
printf("\nnCircumference : %f ",ci);

return(0);
}

Output :


Enter radius of a circle : 1
Area of circle : 3.140000
Circumference  : 6.280000


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