Howdy readers, today you will learn how to write a program to find the area of a rectangle using the C Programming language.

The area of a rectangle (A) is the product of its length ‘a’ and breadth ‘b’.
- Area of Rectangle (A) = Length (a) x Breadth (b)
The below program prompts the user to enter the length and breadth of a rectangle, then it computes the area using the above formula.
So, without any delay, let’s begin this tutorial.
C Program to Find Area of Rectangle
C Program
// C Program to Find Area of Rectangle #include <stdio.h> int main(){ float length, breadth, area; // Asking for input printf("Enter the length of rectangle: "); scanf("%f", &length); printf("Enter the breadth of rectangle: "); scanf("%f", &breadth); // Calculating the area area = length * breadth; // Displaying result printf("Area of the rectangle is: %.2f", area); return 0; }
Output
Enter the length of rectangle: 5.4 Enter the breadth of rectangle: 7.6 Area of the rectangle is: 41.04

Explanation
float length, breadth, area;
We have declared three float data type variables named length
, breadth
and area
.
// Asking for input printf("Enter the length of rectangle: "); scanf("%f", &length); printf("Enter the breadth of rectangle: "); scanf("%f", &breadth);
Then, the program prompts the user to enter the length and breadth.
// Calculating the area area = length * breadth;
Area of the rectangle is computed using the formula, area = length x breadth.
// Displaying result printf("Area of the rectangle is: %.2f", area);
Finally, the area of the rectangle is displayed on the screen using printf()
function. The %.2f
format specifier is used to limit the result to 2 decimal places.
Conclusion
I hope after going through this tutorial, you understand how to write a program to find the area of a rectangle using the C Programming language.
If you have any queries regarding the program, then let us know in the comment section. We will be pleased to solve all of your queries.