If the area of a parallelogram is 20 square centimeters and the base is 5 centimeters, what is its height in centimeters?
一个平行四边形的面积是20平方厘米，底是5厘米，它的高是多少厘米．
<gadget id="calculator">20 / 5</gadget>
<output>4</output>

<result>4</result>