If the circumference of the base of a cylinder is 3.14 cm and the height is 8 cm, what is its lateral area in square centimeters?
一个圆柱的底面周长是3.14厘米，高是8厘米，它的侧面积是多少平方厘米．
<gadget id="calculator">3.14 * 8</gadget>
<output>25.12</output>

<result>25.12</result>