C Program to Compute Perimeter of Square

C program to find the perimeter of a square

This c porgram is used to compute the perimeter of a square based on user input length.

Length is equal for each side in square.

Formula to compute perimeter of a square

Perimeter of a square: length + length + length + length 

Perimeter of a square: 4 x length 

C program to calculate the perimeter of a square

// Finds perimeter of a triangle
#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
    int length, perimeter=0;                                                    
    printf("\nFinds perimeter of a square\n-------------------");               
    printf("\nEnter Length: ");                                                 
    scanf("%d", &length);                                                       
                                                                                
    perimeter = 4 * length;                                                     
                                                                                
    printf("Perimeter of a square is: %d", perimeter);                          
} 

Output:

$ cc perimeter-of-square.c 
$ ./a.out 

Finds perimeter of a square
-------------------
Enter Length: 6
Perimeter of a square is: 24

Other way to implement using addition operator

#include<stdio.h>                                                               
                                                                                
void main()                                                                     
{                                                                               
    int length, perimeter=0;                                                    
    printf("\nFinds perimeter of a square\n-------------------");               
    printf("\nEnter Length: ");                                                 
    scanf("%d", &length);                                                       
                                                                                
    perimeter = (length + length + length + length);                                                     
                                                                                
    printf("Perimeter of a square is: %d", perimeter);                          
} 

Output:

$ cc perimeter-of-square.c 
$ ./a.out 

Finds perimeter of a square
-------------------
Enter Length: 6
Perimeter of a square is: 24