# Calculate Area of Trapezoid

You need to know the Breadth 1, Breadth 2, and Height of to Trapezoid to calculate the area.

Variables:

1. b1 : (Datatype int): to represent the breadth 1 of Trapezoid.

2. b2 : (Datatype int): to represent the breadth 2 of Trapezoid.

3. height : (Datatype long): to represent the height of Trapezoid.

4. area_of_trapezoid: (Datatype long): to store the result of the area of the Trapezoid being computed.

Functions:

printf(): is used to display something on the console/screen. Format specifier %d in printf function is used to display an int variable on-screen and %ld for long. \n is used to add a new line

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

Formula:

Area of Trapezoid : (height/2) x (b1 + b2);

``````/*
* 1000+ C programs + tutorials
*
*
* 8_calculate_area_of_trapezoid.c
*
*
*  Created on: Oct 20, 2014
*  Author: Code2care.org
*/

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

void main() {

int height;
long area_of_trapezoid;

//	clrscr();

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

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

printf("\n\n Enter the Breadth1 value : ");
scanf("%d", &b1);

printf("\n\n Enter the Breadth2 value : ");
scanf("%d", &b2);

area_of_trapezoid = (height/2)*(b1+b2);

printf("\n\n Area of Trapezoid with Height as %d, Breadth1 as %d and Breadth2 as %d =
%ld",height,b1,b2,area_of_trapezoid);

//	getch();

}``````
Output:
``````Program to calculate Area of a Trapezoid:
Enter the Height of a Trapezoid: 15
Enter the Breadth1 value : 30
Enter the Breadth2 value : 10
Area of Trapezoid with Height as 15, Breadth1 as 30 and Breadth2 as 10 = 280``````

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