Use a piece of rectangular paper with a length of 10 cm and a width of 6.28 cm to form a cylinder. What is the lateral area of the cylinder in square centimeters?
用一张长10厘米，宽6.28厘米的长方形纸，围成一个圆柱，这个圆柱体的侧面积是多少平方厘米．
<gadget id="calculator">10 * 6.28</gadget>
<output>62.8</output>

<result>62.8</result>