There is a cylindrical food container with a bottom diameter of 20cm and a height of 20cm. To increase its capacity by 62.8cm**3, how many cm can the height be increased?
有一种底面直径20cm，高20cm的圆柱形食品容器，要使它的容量增加62.8cm**3，可增加高度多少cm．
<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">62.8 / 314</gadget>
<output>0.2</output>

<result>0.2</result>