A square billet with a side length of 10 cm is forged into a rectangular steel with a height and a width of 4 cm. How many centimeters is this steel?
把一块棱长是10厘米的正方体钢坯锻造成高和宽都是4厘米的长方体钢材，这个钢材长多少厘米？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">10 / 16</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">10 * 10 * (5/8)</gadget>
<output>125/2 = around 62.5</output>

<result>125/2 = around 62.5</result>