Take a cuboid with a square bottom (cross-section) and a length of 5 meters, and cut it into four equal sections. The surface area is 54 square meters larger than that of the original wood. What is the volume of this wood in cubic meters?
将底(截)面积是正方形，长是5米的一个长方体，横截成相等的四段，表面积比原木料增加54平方米，原来这根木料的体积是多少立方米．
<gadget id="calculator">54 / 6</gadget>
<output>9</output>

<gadget id="calculator">9 * 5</gadget>
<output>45</output>

<result>45</result>