C Program to find perimeter of square

Program

#include<stdio.h>
void main()
{
	float side, perimeter;
	printf("Enter the side of the square:\n");
	scanf("%f", &side);
	perimeter = 4 * side;
	printf("Perimeter of square is %f\n", perimeter);
}

Output

Enter the side of the square:
8
Perimeter of square is 32.000000