There is a cube of steel with a side length of 40 cm, and it is forged into a rectangular steel with a height and a width of 20 cm. What is the length of the forged steel in cm?
有一块棱长40厘米的正方体钢材，将它锻造成高和宽都是20厘米的长方体钢材，锻造成的钢材长多少厘米．
<gadget id="calculator">40 / 20 / 20</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">40 * 40 * (1/10)</gadget>
<output>160</output>

<result>160</result>