The area of a parallelogram is 36 square centimeters, the base is 9 centimeters, and the height is in centimeters.
一个平行四边形面积是36平方厘米，底是9厘米，高多少厘米．
<gadget id="calculator">36 / 9</gadget>
<output>4</output>

<result>4</result>