The area of a parallelogram is 40 square centimeters, the height is 5 centimeters, and the base is in centimeters.
一个平行四边形的面积是40平方厘米，高是5厘米，底是多少厘米．
<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<result>8</result>