A 64 cm long iron wire can be welded into a cuboid teaching aid with a length of 6 cm and a width of 5 cm. What is the maximum height of it in cm?
用一根64厘米长的铁丝可以焊成一个长6厘米，宽5厘米的长方体教具，它的高最多是多少厘米．
<gadget id="calculator">64 / 4</gadget>
<output>16</output>

<gadget id="calculator">6 + 5</gadget>
<output>11</output>

<gadget id="calculator">16 - 11</gadget>
<output>5</output>

<result>5</result>