Use 64cm iron wire to make a cube frame, then when the product of length, width and height is the maximum volume of the cube.
用64CM的铁丝，做一个立方体框架，则当长、宽、高三个积为多少时，立方体的体积最大．
<gadget id="calculator">5 * 5 * 6</gadget>
<output>150</output>

<result>150</result>