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   "source": [
    "_Aufgabe 1_\n",
    "\n",
    "Sie entwickeln im Team ein CAD-Programm,\n",
    "das das Zusammenstellen komplexer Zeichnungen aus einfachen 2D-Elementen erlaubt.\n",
    "Gegeben ist bereits eine Klasse *Element*."
   ]
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   "execution_count": null,
   "metadata": {
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   "source": [
    "class Element():\n",
    "\n",
    "    def get_bezeichnung(self):\n",
    "        return \"N.N.\"\n",
    "\n",
    "    def umfang(self):\n",
    "        raise NotImplementedError()\n",
    "\n",
    "    def __str__(self):\n",
    "        return self.get_bezeichnung() + f\" Umfang: {self.umfang()}\""
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Ihr Teamleiter beauftragt Sie, für die Elemente *Kreis* und *Rechteck* Unterklassen\n",
    "zur Oberklasse *Element* so zu implementieren,\n",
    "dass anschließend die Aufrufe\n",
    "\n",
    "<code>k = Kreis(radius=3)</code>\n",
    "\n",
    "<code>r = Rechteck(breite=10, hoehe=5)</code>\n",
    "\n",
    "möglich sind.\n"
   ]
  },
  {
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   "execution_count": null,
   "metadata": {
    "pycharm": {
     "name": "#%%\n"
    }
   },
   "outputs": [],
   "source": [
    "import math\n",
    "\n",
    "\n",
    "k = Kreis(radius=3)\n",
    "print(k)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "pycharm": {
     "name": "#%%\n"
    }
   },
   "outputs": [],
   "source": [
    "\n",
    "r = Rechteck(breite=10, hoehe=5)\n",
    "print(r)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "_Aufgabe 2_\n",
    "\n",
    "Fügen Sie jetzt noch eine weitere Klasse *Quadrat* hinzu. Welche Oberklasse besitzt diese neue Klasse?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "pycharm": {
     "name": "#%%\n"
    }
   },
   "outputs": [],
   "source": [
    "\n",
    "q = Quadrat(seite=4)\n",
    "print(q)\n",
    "\n",
    "\n",
    "\n"
   ]
  }
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