If a piece of wire 72 cm long is used to form a cube frame, what is the volume of the cube in cubic centimeters?
用一根长72厘米的铁丝正好做成一个正方体框架，这个正方体的体积是多少立方厘米．
<gadget id="calculator">72 / 12</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<result>216</result>