If the base of a parallelogram is tripled and its height doubled, how many times will the area be enlarged?
一个平行四边形的底扩大到原来的3倍，高扩大到原来的2倍，面积就扩大到原来的多少倍
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>