There is a cuboid iron block with a base area of 16cm**2 and a height of 8cm. Forge it into a cuboid with a width of 4cm and a height of 4cm. What is the length of the forged cuboid?
有一个长方体铁块，底面积是16cm**2，高8cm，把它锻造成一个宽为4cm，高为4cm的长方体，锻造后的长方体长为多少？
<gadget id="calculator">4 * 4</gadget>
<output>16</output>

<gadget id="calculator">8 / 16</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">16 * (1/2)</gadget>
<output>8</output>

<result>8</result>