Cut out the largest square from a rectangle with a length of 5 cm and a width of 3 cm. What is the area of the cut square in square centimeters?
从一个长5厘米，宽3厘米的长方形上剪下一个最大的正方形，剪下的正方形面积是多少平方厘米？
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<result>9</result>