There are 4 cylindrical wooden columns in the central hall of the bank. The perimeter of the bottom surface is 12.56 decimeters and the height is 4.5 meters. If you want to paint these 4 columns, what is the area to be painted?
银行中厅有4根圆柱形木柱，底面周长是12.56分米，高4.5米，要油漆这4根柱子，油漆的面积是多少．
<gadget id="calculator">4.5 * 10</gadget>
<output>45</output>

<gadget id="calculator">12.56 * 45 * 4</gadget>
<output>2_260.8</output>

<result>2_260.8</result>