A cuboid of wood with a length of 3 meters has square sides on the left and right sides, and the sum of the areas of the other four sides is 0.72 square meters. What is its volume in cubic meters?
一根长3米的长方体木料，左右两面是正方形，其余四个面的面积之和是0.72平方米．它的体积是多少立方米？
<gadget id="calculator">0.72 / 3</gadget>
<output>0.24</output>

<gadget id="calculator">0.24 / 4</gadget>
<output>0.06</output>

<gadget id="calculator">0.06 * 0.06 * 3</gadget>
<output>0.0108</output>

<result>0.0108</result>