The area of a parallelogram is 8dm**2, if the base and height are doubled, what is the area dm**2?
一个平行四边形的面积是8dm**2，如果底和高都扩大到原来的2倍，面积是多少dm**2．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>