The circumference of the base of a cylinder is 6.28 decimeters, and the height is 10 decimeters. What is the lateral area of the cylinder in square decimeters?
一个圆柱的底面周长是6.28分米，高是10分米，这个圆柱的侧面积是多少平方分米．
<gadget id="calculator">6.28 * 10</gadget>
<output>62.8</output>

<result>62.8</result>