What is the area of a square surrounded by a rope 7.6 meters long?
用一根7.6米长的绳子围成一个正方形，这个正方形的面积是多少？
<gadget id="calculator">7.6 / 4</gadget>
<output>1.9</output>

<gadget id="calculator">1.9 * 1.9</gadget>
<output>3.61</output>

<result>3.61</result>