If 12 squares with a side length of 1 cm are used to form a rectangle, what is the area of the rectangle?
用12个边长是1厘米的正方形拼成一个长方形，这个长方形面积是多少
<gadget id="calculator">1 * 1 * 12</gadget>
<output>12</output>

<result>12</result>