Cut the length of a rectangular piece of paper 10 cm long and 8 cm wide into a square with the same length as the width. What is the area of the cut piece of paper?
把一张长10厘米，宽8厘米的长方形纸片的长剪成与宽同样长的正方形．剪去的纸片的面积是多少？
<gadget id="calculator">10 - 8</gadget>
<output>2</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>