initial commit

Python/OOP2/task9.py

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+from dataclasses import dataclass
+
+
+class Figure:
+    pass
+
+
+@dataclass
+class Triangle:
+    sides: tuple[int, int, int]
+    height: int
+
+    def area(self) -> int:
+        return self.sides[0] * self.height
+
+
+@dataclass
+class Circle:
+    pass