C program to find circumference of the circle.

01  #include<stdio.h>
02
03 int main()
04 {
05 int radius;
06 float cir;
07
08 printf("Enter Radius of the Circle : ");
09 scanf("%d",&radius);
10
11 cir=2*3.14*radius;
12
13 printf("Circumference of the Circle : %.2f",cir);
14 return 0;
15 }

 OUTPUT :

Enter Radius of the Circle : 5
Circumference of the Circle : 31.40

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