If the circumference of the base of the cylinder is 3.14 meters and the height is 5 meters, what is the lateral area of the cylinder in square meters?
圆柱的底面周长是3.14米，高是5米，则圆柱的侧面积是多少平方米
<gadget id="calculator">3.14 * 5</gadget>
<output>15.7</output>

<result>15.7</result>