The surface area of a cuboid is 84cm**2, divide this cuboid into 3 equal cubes, what is the surface area of a cube in cm**2.
一个长方体的表面积是84cm**2，把这个长方体分割成3个相等的正方体，一个正方体的表面积为多少cm**2．
<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">18 - 4</gadget>
<output>14</output>

<gadget id="calculator">84 / 14</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<result>36</result>