parallelogram, the length of two adjacent sides is 6 cm and 9 cm, and the height of one side is 7 cm, what is the area of this parallelogram in square centimeters?
一平行四边形，相邻的两条边长分6厘米和9厘米，其中一条边上的高是7厘米，这个平行四边形的面积是多少平方厘米．
<gadget id="calculator">6 * 7</gadget>
<output>42</output>

<result>42</result>