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C Programming Exercises

C Exercises: Compute the perimeter and area of a rectangle

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C Basic Declarations and Expressions : Exercise-5 with Solution

Write a C program to compute the perimeter and area of a rectangle with a height of 7 inches. and width of 5 inches.

Expected Output :

Perimeter of the rectangle = 24 inches 
Area of the rectangle = 35 square inches

C programming: Perimeter of a rectangle

A perimeter is a path that surrounds a two-dimensional shape. The word comes from the Greek peri (around) and meter (measure). The perimeter can be used to calculate the length of fence required to surround a yard or garden. For rectangles or kites which have only two different side lengths, say x and y, the perimeter is equal to 2x + 2y

C programming: perimeter of a rectangle

C programming: Area of a rectangle

The area of a two-dimensional figure describes the amount of surface the shape covers. You measure area in square units of a fixed size, square units of measure are square inches, square centimeters, or square miles etc. The formula for the area of a rectangle uses multiplication: length • width = area.  A rectangle with four sides of equal length is a square.

C programming: area of a rectangle

C Code:

#include <stdio.h> 
/* height and width of a rectangle in inches */
int width;          
int height;         

int area;           
int perimeter;      

int main() {
	height = 7;
	width = 5;

    perimeter = 2*(height + width);
	printf("Perimeter of the rectangle = %d inches\n", perimeter);
	
	area = height * width;
	printf("Area of the rectangle = %d square inches\n", area);

return(0);
}

Solution

#include <stdio.h> 
/* height and width of a rectangle in inches */
int width;          
int height;         

int area;           
int perimeter;      

int main() {
	height = 7;
	width = 5;

    perimeter = 2*(height + width);
	printf("Perimeter of the rectangle = %d inches\n", perimeter);
	
	area = height * width;
	printf("Area of the rectangle = %d square inches\n", area);

return(0);
}

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