📐 Polygon Area Calculator (Python OOP)

A small geometry toolkit built with Python and OOP. It defines a Rectangle class and a Square class that inherits from it, with methods to compute area, perimeter, diagonal, draw the shape, and check how many shapes fit inside another.

🎯 Built to practice inheritance, method overriding, and class design.

✨ Features

• Create Rectangle (width, height) and Square (side) objects
• Compute area, perimeter, and diagonal
• Modify dimensions via setter methods
• Render shapes using * characters (get_picture)
• Calculate how many shapes fit inside another (get_amount_inside)
• Clean __str__ object representation

🧠 Concepts Practiced

Classes & Objects · Inheritance · Method Overriding · Math · String Formatting · Loops

🏗 Project Structure

Class / Method	Description
Rectangle	Base shape with width & height
Square(Rectangle)	Inherits Rectangle, single side
get_area() / get_perimeter()	Geometry calculations
get_diagonal()	Pythagorean diagonal
get_picture()	ASCII drawing of the shape
get_amount_inside(shape)	Fits count of one shape in another

💻 How to Run

# Requires Python 3.8+
python polygon_calculator.py

🎯 Learning Outcome

• Using inheritance in Python
• Overriding methods in subclasses
• Structuring programs around classes
• Applying math formulas in code

📌 Future Improvements

• Add Circle / Triangle classes
• Unit tests with pytest
• CLI to accept user dimensions