Nanchang Subway Company plans to install a column-wrapped light box with a height of 3m and a diameter of 1.6m on the 26 columns of a platform. How big a poster can be placed in a light box?
南昌地铁公司准备在一个站台的26根立柱上分别装一个高3m、底面直径1.6m的包柱灯箱．一个灯箱里可以张贴多大面积的海报？
<gadget id="calculator">3.14 * 1.6 * 3</gadget>
<output>15.072</output>

<result>15.072</result>