A conical sand pile has a base diameter of 6 meters and a height of 25 decimeters. Use this pile of sand to pave a road with a thickness of 2 cm on a road with a width of 10 meters. How many meters can you pave?
一个圆锥形沙堆，底面直径是6米，高25分米．用这堆沙在10米宽的公路上铺2厘米厚的路面，能铺多少米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">25 / 10</gadget>
<output>5/2 = around 2.5</output>

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

<gadget id="calculator">10 * (1/50)</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(5/2) / (1/5)</gadget>
<output>25/2 = around 12.5</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * (25/2)</gadget>
<output>117.75</output>

<result>117.75</result>