A cuboid has a length of 6 cm, a width of 4 cm, and a height of 5 cm. What is the sum of the lengths of its sides in cm?
一个长方体的长6厘米，宽4厘米，高5厘米，它的棱长总和是多少厘米．
<gadget id="calculator">6 + 4 + 5</gadget>
<output>15</output>

<gadget id="calculator">15 * 4</gadget>
<output>60</output>

<result>60</result>