A cylindrical box of potato chips has a height of 2.5 decimeters and a base radius of 3 centimeters. If a label paper with a height of 5 cm is pasted along the circumference of the packaging box, how many square centimeters should the area of the label paper be?
一个圆柱形的薯片包装盒，高是2.5分米，底面半径是3厘米．如果沿包装盒的一周贴上高度为5厘米的商标纸，商标纸的面积应是多少平方厘米？
<gadget id="calculator">3.14 * 3 * 2 * 5</gadget>
<output>94.2</output>

<result>94.2</result>