If each side of a rectangle with a length of 4 cm and a width of 3 cm is enlarged by 3:1, what is the area of the figure obtained in square centimeters?
把一个长4厘米、宽3厘米的长方形各条边按3：1放大，得到的图形面积是多少平方厘米．
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">12 * 9</gadget>
<output>108</output>

<result>108</result>