If the base of a parallelogram is tripled and the height is doubled, how many times the area of the obtained parallelogram is the original.
把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，得到的平行四边形的面积是原来的多少倍．
<gadget id="calculator">2 * 3</gadget>
<output>6</output>

<result>6</result>