OOP — Shape Inheritance

Implement solve() that returns a tuple of three classes: (Shape, Circle, Rectangle).

Requirements:

Shape (base class)

• Constructor: __init__(self, color: str)
• Method: describe(self) -> str returns "I am a {color} shape."

Circle (extends Shape)

• Constructor: __init__(self, color: str, radius: float)
• Method: area(self) -> float returns π × radius² (use math.pi)
• Overrides describe(self) → "I am a {color} circle with radius {radius}."

Rectangle (extends Shape)

• Constructor: __init__(self, color: str, width: float, height: float)
• Method: area(self) -> float returns width × height
• Overrides describe(self) → "I am a {color} rectangle of {width}x{height}."

Example

Shape, Circle, Rectangle = solve()
c = Circle("red", 5)
c.describe()  # "I am a red circle with radius 5."
c.area()      # 78.539...