If the area of a parallelogram is 6 square meters and the height is 5 decimeters, what is its base?
一个平行四边形的面积是6平方米，高是5分米，它的底是多少．
<gadget id="calculator">100 / 5</gadget>
<output>20</output>

<gadget id="calculator">6 * 20</gadget>
<output>120</output>

<result>120</result>