# Calculate Area of Square

This C Program calculates Area of a Square based on the side of Square entered by the user.

Variables:

1. side: (Datatype int) : to represent the side of square.

2. area: (Datatype int) : to store the result of the area of the square being computed.

Functions:

printf() : is used to display something on the console/screen. Format specifier %d in printf function is used to display a int variable on scree. \n is used to add a newline

scanf() : is used to fetch data inputted by the user on the console/screen using keyboard. %d in scanf is indicates that inputted text is of type int.

Formula:

Area of Square : (side)2

``````/*
* 1000+ C programs + tutorials
*
*
* 5_calculate_area_of_square.c
*
*  Created on: Oct 20, 2014
*      Author: Code2care.org
*/

#include <stdio.h>
//#include <conio.h>

void main() {

int side;
int area;

//	clrscr();
printf("Program to calculate Area of a Square :  \n\n");

printf("Enter the side of a square : ");
scanf("%d", &side);

area = side*side;

printf("\n\nArea of square with side %d = %ld \n\n",side,area);

//	getch();

}``````
Output:
``````Program to calculate Area of a Square :
Enter the side of a square: 20
Area of a square with side 20 = 400``````
Without using the variable area
``````/*
* 1000+ C programs + tutorials
*
*
* 5_calculate_area_of_square.c
*
*  Created on: Oct 20, 2014
*      Author: Code2care.org
*/

#include <stdio.h>
//#include <conio.h>

void main() {

int side;

//	clrscr();
printf("Program to calculate Area of a Square :  \n\n");

printf("Enter the side of a square : ");
scanf("%d", &side);

printf("\n\nArea of square with side %d = %ld \n\n",side,side*side);

//	getch();

}``````

The best way to learn C programming is to practice more and more programs. Code2care C Programming tutorials provide 1000+ programs in C that you can study and become an expert in the language. Programs are divided into categories depending upon type and complexity.

BSc. IT, BSc. Computer Science, BSc. IT, MSc. IT, MSc. Computer Science, MCA, BTech IT & BTech Engineers may find these programs very useful.