Using a piece of rectangular paper with a length of 36 cm and a width of 29 cm, cut out the largest square. What is the area of this square in square centimeters?
用一张长36厘米，宽29厘米的长方形纸，剪一个最大的正方形，这个正方形的面积是多少平方厘米？
<gadget id="calculator">29 * 29</gadget>
<output>841</output>

<result>841</result>