The perimeter of a parallelogram wheat field is 78m. Now it has been measured that the length of one side is 18m, and the corresponding height is 14m. What is the height of the other side in m?
一块平行四边形的麦田周长为78m，现在已经测出其中的一条边长是18m，对应的高是14m，另一条边上的高是多少m．
<gadget id="calculator">78 / 2</gadget>
<output>39</output>

<gadget id="calculator">39 - 18</gadget>
<output>21</output>

<gadget id="calculator">14 / 21</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">18 * (2/3)</gadget>
<output>12</output>

<result>12</result>