A parallelogram lawn has a base of 5.5 meters and a height of 3.8 meters. What is the area in square meters?
一个平行四边形草坪，它的底是5.5米，高是3.8米，面积是多少平方米．
<gadget id="calculator">5.5 * 3.8</gadget>
<output>20.9</output>

<result>20.9</result>