The sum of the sides of a cuboid is 120 centimeters, what is the length of the three sides that intersect at a vertex in centimeters
一个长方体棱长之和是120厘米，相交于一个顶点的三条棱的长度是多少厘米
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<result>30</result>