The area of a three-fish shape is 72 square centimeters, the base is 36 centimeters, and the height is in centimeters.
一个三鱼形的面积是72平方厘米，底是36厘米，高多少厘米．
<gadget id="calculator">2 / 36</gadget>
<output>1/18 = around 0.055556</output>

<gadget id="calculator">72 * (1/18)</gadget>
<output>4</output>

<result>4</result>