# C++ Program to Calculate Area of Rectangle

Howdy readers, today you will learn how to write a C++ program to calculate the area of a rectangle.

The area of a rectangle (A) is the product of its length l and width b. So, the area of the rectangle is:  Area of Rectangle (A) = Length (a) x Width (b).

This program uses the above formula to find the area of a rectangle.

So, without any delay, let’s begin this tutorial.

## C++ Program to Calculate Area of Rectangle

C++ Program

```// C++ Program to Calculate Area of Rectangle
#include <iostream>
using namespace std;

int main(){
float area;

// Taking input
cout << "Enter the length of the rectangle: ";
cin >> length;
cout << "Enter the breadth of the rectangle: ";

// Calculating area of rectangle using formula

// Display area
cout << "The area of the rectangle is: " << area << endl;

return 0;
}
```

Output

```Enter the length of the rectangle: 12
Enter the breadth of the rectangle: 16
The area of the rectangle is: 192
```

Explanation

```    int length, breadth;
float area;
```

In this program, we have declared two int data type variables and one float data type variable named `length`, `breadth `and `area `respectively.

```    cout << "Enter the length of the rectangle: ";
cin >> length;
cout << "Enter the breadth of the rectangle: ";
```

The user is asked to enter the value of the length and breadth of the rectangle.

```    area = length * breadth;
```

The area of the rectangle is obtained using the formula: A = l x b, where ‘l’ is the length and ‘b’ is the breadth of the rectangle.

```    cout << "The area of the rectangle is: " << area << endl;
```

After that, the area of the rectangle is printed on the screen using the cout statement.

## Conclusion

Today you learned how to write a C++ program to calculate the area of a rectangle.