A 72 cm long iron wire is made into a cuboid frame. It is known that the length and width of the cuboid are 8 cm and 5 cm respectively. What is the height in cm?
把一根长72厘米的铁丝做成一个长方体框架，已知长方体的长、宽分别是8厘米、5厘米，高是多少厘米？
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">18 - 8 - 5</gadget>
<output>5</output>

<result>5</result>