A cylinder has a lateral area of 12.56 square centimeters and a height of 2 centimeters. What is the diameter of its base in centimeters?
一个圆柱体的侧面积是12.56平方厘米，高是2厘米，它的底面直径是多少厘米．
<gadget id="calculator">12.56 / 2 / 3.14</gadget>
<output>2</output>

<result>2</result>