The side length of a small square is 3 cm, and the area of a large square is 4 times the area of the small square. What is the perimeter of the large square?
一个小正方形的边长是3厘米，一个大正方形的面积是小正方形面积的4倍，大正方形的周长是多少？
<gadget id="calculator">3 * 2 * 4</gadget>
<output>24</output>

<result>24</result>