conical fertilizer pile has a bottom circumference of 12.56 meters and a height of 1.8 meters. If 20 cubic decimeters of fertilizer are applied per hectare, how many hectares of land can be fertilized by these fertilizers? (keep one decimal place)
一个圆锥形肥料堆，底面周长是12.56米，高是1.8米，如果每公顷土地施肥20立方分米，这些肥料可以供多少公顷的土地施肥？(保留一位小数)
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">12.56 / 3.14 / 2</gadget>
<output>2</output>

<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 1.8</gadget>
<output>7.536</output>

<gadget id="calculator">7.536 / 0.02</gadget>
<output>376.8</output>

<result>376.8</result>