The area of a rectangle is 12 square centimeters, what is its area in cm**2 after it is enlarged on a scale of 1:4?
一个长方形的面积是12平方厘米，按1：4的比例尺放大后它的面积是多少cm**2．
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">12 * 16</gadget>
<output>192</output>

<result>192</result>