If a cuboid with a length of 9 decimeters is cut parallel along the cross-section and divided into three cubes of the same size, what is the surface area of each cube in square decimeters?
把一个长9分米的长方体沿着横截面平行切开，正好等分成三个同样大小的正方体后，每个正方体的表面积是多少平方分米．
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<result>54</result>