A conical cinder has a bottom area of 6.28 meters and a height of 3 meters. Spread this pile of cinders on a 5-meter-wide runway to a thickness of 2 cm. How many meters can be paved?
一个圆锥形煤渣，底面积是6.28米，高是3米，把这堆煤渣铺在5米宽的跑道上铺2厘米厚．能铺多少米远？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 6.28 * 3</gadget>
<output>6.28</output>

<gadget id="calculator">2 / 100</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">5 * (1/50)</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">6.28 / (1/10)</gadget>
<output>62.8</output>

<result>62.8</result>