The area of a parallelogram is 2.4 square centimeters, the base is 20 centimeters, and the height is centimeters.
一个平行四边形的面积是2.4平方分米，底是20厘米，高是多少厘米．
<gadget id="calculator">2.4 * 100</gadget>
<output>240</output>

<gadget id="calculator">240 / 20</gadget>
<output>12</output>

<result>12</result>