If the adjacent sides of a parallelogram are 5 cm long and 7 cm long, and its height is 6 cm, what is its area in square centimeters?
平行四边形相邻两边分别长5厘米、7厘米、它的高是6厘米，它的面积是多少平方厘米．
<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<result>30</result>