Write a program to find area of rectangle in C Language - Program to find area of rectangle in C - Program to find area of rectangle

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Writing a Program to Find the Area of a Rectangle in C

In the realm of programming, mastering the basics is akin to building a sturdy foundation for a skyscraper. Among these fundamentals lies the ability to manipulate variables, utilize basic control structures, and solve elementary problems. Today, we embark on a journey to delve into one such fundamental task: finding the area of a rectangle in the C programming language.

Understanding the Problem
Before diving into code, let’s understand the problem at hand. A rectangle is a quadrilateral with four right angles, where opposite sides are equal in length. To find its area, we multiply its length by its width. Simple, isn’t it?

The Approach
To solve this problem programmatically, we need to follow a structured approach:

1. Input: Obtain the length and width of the rectangle from the user.
2. Processing: Multiply the length and width to calculate the area.
3. Output: Display the area to the user.

The Code
Let's translate the above approach into C code:

#include <stdio.h>
int main() {
    float length, width, area;
    // Input
    printf("Enter the length of the rectangle: ");
    scanf("%f", &length);
    printf("Enter the width of the rectangle: ");
    scanf("%f", &width);
    // Processing
    area = length * width;
    // Output
    printf("The area of the rectangle is: %.2f\n", area);
    return 0;
}

Code Explanation
  • We include the necessary header file `<stdio.h>` for standard input-output operations.
  • Inside the `main` function, we declare variables `length`, `width`, and `area` to store the length, width, and area of the rectangle, respectively.
  • Using `printf` and `scanf`, we prompt the user to input the length and width of the rectangle.
  • We then calculate the area by multiplying the length and width and store it in the `area` variable.
  • Finally, we use `printf` to display the calculated area to the user.
Running the Program
To run this program, you’ll need a C compiler such as GCC. Save the code in a file with a `.c` extension, compile it, and execute the resulting executable.

Conclusion
Congratulations! You’ve just written a simple yet effective program to find the area of a rectangle in C. While this may seem trivial, mastering such fundamental tasks is crucial for anyone aspiring to become proficient in programming. As you continue your journey, remember to always build upon your basics, for they serve as the cornerstone of your programming prowess.

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