A wire can form a cuboid with a length of 6dm, a width of 5dm and a height of 4dm. How long is the wire in dm?
一根铁丝可以围成一个长6dm，宽5dm，高4dm的长方体．这根铁丝长多少dm？
<gadget id="calculator">6 + 5 + 4</gadget>
<output>15</output>

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

<result>60</result>