If the side area of a cylinder is 628cm**2 and the radius of the bottom is 10cm, what is its height in cm?
一个圆柱的侧面积是628cm**2，底面半径是10cm，那么它的高是多少cm．
<gadget id="calculator">2 * 3.14 * 10</gadget>
<output>62.8</output>

<gadget id="calculator">628 / 62.8</gadget>
<output>10</output>

<result>10</result>