Use a 4-meter-long iron wire and saw it into 8 wires of the same length to make the height of the box model. What is the height of the box?
用一根长4米的铁丝，锯成同样长的8根做盒子模型的高，这个盒子高是多少？
<gadget id="calculator">4 / 8</gadget>
<output>1/2 = around 0.5</output>

<result>1/2 = around 0.5</result>