to find the circumference and the area of a circle.......(in c)

 #include
 #include
 void main()
 {
int r;
const int pi=3.14;
float cir,area;
clrscr();
printf("enter the radius of circle  :\n");
scanf("%d",&r);
cir=2*pi*r;
area=pi*r*r;
printf("\nthe circumfrence of the circle is = %.2f",cir);
printf("\nthe area of the circle is = %.2f",area);
getche();
 }