What is the area of a parallelogram whose base is 3.6 meters long and whose height is 2.5 meters?
一个平行四边形底长3.6米，高2.5米，它的面积是多少平方米．
<gadget id="calculator">3.6 * 2.5</gadget>
<output>9</output>

<result>9</result>