# 7 : C Program to Calculate Area and Parallelogram

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To calulate area of Parallelogram you need to know the height and breadth of a Parallelogram. You can ask user to enter height and breadth and calculate the area.

Variables :

1. height : (Datatype int) : to represent the height of Parallelogram.

2. breadth : (Datatype int) : to represent the breadth of Parallelogram.

3. area : (Datatype long) : to store the result of area of the Parallelogram 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 screen and %ld for long. \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 and %ld for long.

Formula :

Area of Parallelogram : height x breadth
``````
/*
* 1000+ C programs + tutorials
*
*
* 7_calculate_area_of_parallelogram.c
*
*
*  Created on: Oct 20, 2014
*  Author: Code2care.org
*/

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

void main() {

int height;
long area;

//	clrscr();

printf(" Program to calculate Area of a Parallelogram :  \n\n");

printf(" Enter the Length of a Parallelogram : ");
scanf("%d", &height);

printf("\n\n Enter the Breadth of a Parallelogram : ");

printf("\n\n Area of Parallelogram with Height as %d and Breadth as %d  = %ld \n\n",height,breadth,area);

//	getch();

}```
```

• Output :

Program to calculate Area and Circumference of Circle :

Enter the radius of Circle : 5

Area of circle with radius 5 = 78.550003

Circumference of circle with radius 5 = 31.420000

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