A cylinder has a base circumference of 18.84 decimeters and a height of 5 decimeters. What is the lateral area of this cylinder.
一个圆柱的底面周长是18.84分米，高5分米．这个圆柱体的侧面积是多少．
<gadget id="calculator">18.84 * 5</gadget>
<output>94.2</output>

<result>94.2</result>