The base of a parallelogram is 20cm, the height corresponding to the base is 8cm, what is the area of the parallelogram in cm**2.
一个平行四边形的底是20cm，底所对应的高是8cm，平行四边形的面积是多少cm**2．
<gadget id="calculator">20 * 8</gadget>
<output>160</output>

<result>160</result>