A cuboid is a square when its sides are unfolded, its bottom is also a square, and its height is 24 cm. Find its volume.
一个长方体侧面展开后是一个正方形，底面也是一个正方形，高是24厘米，求它的体积．
<gadget id="calculator">24 / 4</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 24</gadget>
<output>864</output>

<result>864</result>