If the area of a rectangle is 12 square centimeters, what is the area of the square centimeter if it is enlarged at a ratio of 4:1?
一个长方形的面积是12平方厘米，按4：1的比例放大后它的面积是多少平方厘米
<gadget id="calculator">12 * 16</gadget>
<output>192</output>

<result>192</result>