There is a cube of iron with a side length of 80 cm. Now it is melted and cast into a cuboid with a cross-sectional area of 2000 square centimeters. What is the length of this cuboid in centimeters?
有一块棱长80厘米的正方体铁块，现在把它熔铸成一个横截面积是2000平方厘米的长方体，这个长方体的长是多少厘米？
<gadget id="calculator">80 / 2_000</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">80 * 80 * (1/25)</gadget>
<output>256</output>

<result>256</result>