A conical pile of sand has a circumference of 12.56 meters and a height of 1.8 meters. Use this pile of sand to pave a 6-meter-wide road with a thickness of 20 centimeters. How many meters can it be paved with?
一个圆锥形砂堆，底面周长是12.56米，高是1.8米，用这堆砂在6米宽的路上铺20厘米厚，能铺多少米长？
<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">6 * 0.2</gadget>
<output>1.2</output>

<gadget id="calculator">7.536 / 1.2</gadget>
<output>6.28</output>

<result>6.28</result>