C program to find area and circumference of a circle

#include <stdio.h>

int main()

{

int circle_radius;

float PI_VALUE=3.14, circle_area, circle_circumf;

//Ask user to enter the radius of circle

printf("\nEnter radius of circle: ");

//Storing the user input into variable circle_radius

scanf("%d",&circle_radius);

//Calculate and display Area

circle_area = PI_VALUE * circle_radius * circle_radius;

printf("\nArea of circle is: %f",circle_area);

//Caluclate and display Circumference

circle_circumf = 2 * PI_VALUE * circle_radius;

printf("\nCircumference of circle is: %f",circle_circumf);

return(0);

}