From a rectangular piece of paper 8 cm long and 6 cm wide, cut out the largest square, what figure is left? What is the area of the rest in square centimeters?
从一张长8厘米，宽6厘米的长方形纸上，剪下一个最大的正方形，剩下的是什么图形？剩下部分的面积是多少平方厘米？
<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<result>12</result>