C Program to Find the Perimeter of a Square

Write a C program to find the perimeter of a square. This example allows entering the square side and uses the (4 * side) math formula to calculate the perimeter.

#include <stdio.h>

int main()
{
    float Sqrside, Sqrperimeter;
    
    printf("Enter the Square Side = ");
    scanf("%f",&Sqrside);

    Sqrperimeter = 4 * Sqrside;

    printf("The perimeter of a Square = %.2f\n", Sqrperimeter); 
    
    return 0;
}

In this program, the user defined function accepts the side and finds the perimeter of a square.

#include <stdio.h>

float squarePerimeter(float Sqrside)
{
    return 4 * Sqrside;
}
int main()
{
    float Sqrside, Sqrperimeter;
    
    printf("Enter the Side = ");
    scanf("%f",&Sqrside);

    Sqrperimeter = squarePerimeter(Sqrside);

    printf("The perimeter = %.2f\n", Sqrperimeter); 
    
    return 0;
}

Enter the Side = 14
The perimeter = 56.00


Enter the Side = 9
The perimeter = 36.00