Cut a rectangular iron sheet with a length of 12 decimeters and a width of 10 decimeters into a square with the largest area. What is the area of this square iron sheet?
把一张长12分米、宽10分米的长方形铁皮剪成一个面积最大的正方形，这张正方形铁皮的面积是多少平方分米？
<gadget id="calculator">10 * 10</gadget>
<output>100</output>

<result>100</result>