A 36-meter rope encloses a square, what is the area of the square?
一根36米的绳子围成一个正方形，这个正方形的面积是多少？
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">9 * 9</gadget>
<output>81</output>

<result>81</result>