๐ Day 19/150 – Area of a Rectangle in Python
Calculating the area of a rectangle is one of the simplest and most important beginner problems in programming.
๐ Formula:
Area = Length × Width
In this blog, we’ll explore multiple ways to calculate the area of a rectangle using Python, along with clear explanations.
๐น Method 1 – Direct Calculation
The most basic approach using fixed values.
length = 10 width = 5 area = length * width print("Area of rectangle:", area)
✅ Explanation:
-
We directly multiply length and width
- For 10 × 5 = 50
๐ Best for understanding the core concept.
๐น Method 2 – Taking User Input
Make your program dynamic and interactive.
length = float(input("Enter length: ")) width = float(input("Enter width: ")) area = length * width print("Area of rectangle:", area)
✅ Explanation:
- input() takes user values
- float() allows decimal inputs
๐ Useful for real-world applications.
๐น Method 3 – Using a Function
Reusable and structured approach.
✅ Explanation:
-
Function takes length and width
- Returns the calculated area
๐ Best for clean and maintainable code.
๐น Method 4 – Using Lambda Function
Short and quick one-liner function.
area = lambda l, w: l * w print(area(10, 5))
✅ Explanation:
- lambda creates an anonymous function
- Useful for small, simple operations
๐ Great for concise coding.
๐น Method 5 – Using Tuple Input
Handling multiple values together.
✅ Explanation:
- Tuple stores (length, width)
-
Access values using indexing [0] and [1]
๐ Useful when working with grouped data.
⚡ Key Takeaways
- ✔ length * width is the core logic
- ✔ Use float() for accurate inputs
- ✔ Functions improve reusability
- ✔ Lambda simplifies small operations
- ✔ Tuples help manage grouped values
๐ฏ Final Thoughts
This simple problem helps you understand:
- Variables and arithmetic operations
- User input handling
- Writing reusable functions
- Clean and efficient coding
Mastering these basics will strengthen your Python foundation.
.png)
.png)
Posts
