The distance between the plum trees in the plum garden is 3 meters, and the row spacing is 4 meters. How many square meters does each plum tree occupy?
李子园中李子树的株距为3米，行距为4米，每株李子树的占地面积是多少平方米？
<gadget id="calculator">4 * 3</gadget>
<output>12</output>

<result>12</result>