If the area of a face of a cube is 36 square centimeters, what is the sum of the lengths of its sides in centimeters?
一个正方体的一个面的面积是36平方厘米，它的棱长之和是多少厘米．
<gadget id="calculator">6 * 12</gadget>
<output>72</output>

<result>72</result>