From a trapezoid whose upper base is 16cm, lower base is 24cm, and height is 10cm, draw the largest parallelogram. What is the area of this parallelogram in cm**2.
从一个上底是16cm，下底是24cm，高是10cm的梯形中，画一个最大的平行四边形，这个平行四边形的面积是多少cm**2．
<gadget id="calculator">16 * 10</gadget>
<output>160</output>

<result>160</result>