The side area of a cylinder is 62.8 square decimeters, and the height is 5 decimeters. What is the circumference of the bottom of the cylinder?
一个圆柱的侧面积是62.8平方分米，高是5分米，这个圆柱底面周长是多少分米．
<gadget id="calculator">62.8 / 5</gadget>
<output>12.56</output>

<result>12.56</result>