A cubic steel billet with side length 10 cm is forged into a rectangular parallelepiped billet with height and width of 5 cm. How many centimeters is this piece of steel?
把一块棱长10厘米的立方体钢坯锻造成高和宽都是5厘米的长方体钢坯．这块钢材长多少厘米？
<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">10 / 25</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">10 * 10 * (2/5)</gadget>
<output>40</output>

<result>40</result>