The sum of the sides of a cube without a lid is 60 cm, what is its surface area?
一个无盖正方体容器的棱长之和是60厘米，它的表面积是多少．
<gadget id="calculator">60 / 12</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 5</gadget>
<output>125</output>

<result>125</result>