If the base of the parallelogram is 6 decimeters long and 5.5 decimeters high, what is the area in square decimeters?
平行四边形的底边长6分米，高5.5分米，面积是多少平方分米．
<gadget id="calculator">6 * 5.5</gadget>
<output>33</output>

<result>33</result>