Program to find area and circumference of a circle in C

Program

#include<stdio.h>
int main()
{
    float r,a,c;
    printf("**********************************************************");
    printf("\n**********************************************************");
    printf("\n**    WAP to find area and circumference of a circle    **");
    printf("\n**              Created by Sheetal Garg                 **");
    printf("\n**                Assistant Professor                   **");
    printf("\n**                Phone No:9467863365                   **");
    printf("\n**********************************************************");
    printf("\n**********************************************************");
    printf("\nenter the radius of circle \n ");
    scanf("%f",&r);
    a = 3.14*r*r;
    printf("the area of circle is %f \n",a);
    c = 2*3.14*r;
    printf("the circumference of circle is %f",c);
    return 0;
}

Output

**********************************************************
**********************************************************
**    WAP to find area and circumference of a circle    **
**              Created by Sheetal Garg                 **
**                Assistant Professor                   **
**                Phone No:9467863365                   **
**********************************************************
**********************************************************
enter the radius of circle 
 5
the area of circle is 78.500000 
the circumference of circle is 31.400000