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

<gadget id="calculator">12.56 / 12.56</gadget>
<output>1</output>

<result>1</result>