A conical sandy beach has a bottom radius of 2 meters and a height of 6 meters. How long can this pile of sand be spread on a road with a width of 8 meters and a thickness of 2 centimeters?
一个圆锥形沙滩，底面半径是2米，高是6米，把这堆沙以2厘米厚铺在宽8米的路面上，能铺多长？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">8 * (1/50)</gadget>
<output>4/25 = around 0.16</output>

<gadget id="calculator">6 / (4/25)</gadget>
<output>75/2 = around 37.5</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * (75/2)</gadget>
<output>157</output>

<result>157</result>