If a piece of iron wire can be used to form a square frame with a side length of 5 cm, what is the sum of the side lengths of the cube?
用一根铁丝正好可以围成一个棱长5厘米的正方体框架，这个正方体的棱长总和是多少．
<gadget id="calculator">5 * 12</gadget>
<output>60</output>

<result>60</result>