A cuboid steel column is 50 cm long, 20 cm wide, and 6.28 cm high. Now it is cast into a circular steel column. The diameter of the circular steel column is 20 cm. How many centimeters is the height?
一个长方体钢坏长50厘米，宽20厘米，高6.28厘米，现将它铸造成圆形钢柱，圆形钢柱的直径是20厘米，高是多少厘米？
<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">6.28 / 314</gadget>
<output>0.02</output>

<gadget id="calculator">50 * 20 * 0.02</gadget>
<output>20</output>

<result>20</result>