The lengths of two adjacent sides of a parallelogram are 16 cm and 24 cm respectively, and the height of one side is 20 cm. What is the area of the parallelogram in square centimeters?
一个平行四边形相邻两条边的长度分别为16厘米和24厘米，一条边上的高是20厘米，这个平行四边形的面积是多少平方厘米．
<gadget id="calculator">20 * 16</gadget>
<output>320</output>

<result>320</result>