steel bar with a length of 10.4 meters is welded into a square frame. What is the area enclosed by this frame?
把一根长为10.4米的钢筋焊接成一个正方形框架，这个框架围成的面积是多少平方米？
<gadget id="calculator">10.4 / 4</gadget>
<output>2.6</output>

<gadget id="calculator">2.6 * 2.6</gadget>
<output>6.76</output>

<result>6.76</result>