Take a piece of rectangular paper with a length of 12.56 cm and a width of 5 cm and roll it into the largest cylinder. What is the lateral area of this cylinder in square centimeters?
用一张长12.56厘米，宽5厘米的长方形纸，卷成一个最大的圆柱形，这个圆柱的侧面积是多少平方厘米？
<gadget id="calculator">12.56 * 5</gadget>
<output>62.8</output>

<result>62.8</result>