The sum of the lengths of all sides of a cuboid is 72cm, the known length is 8cm, and the width is 6cm. How many cm is the height?
一个长方体的所有棱长和是72cm，已知长是8cm，宽是6cm．高是多少cm．
<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">18 - 8 - 6</gadget>
<output>4</output>

<result>4</result>