A cylindrical sand pile has a bottom area of 28.26m**2 and a height of 2.5m. Use this pile of sand to pave a 5cm-thick road surface on a 10m-wide road. How many meters can you pave?
一个圆柱形沙堆，底面积是28.26m**2，高是2.5m．用这堆沙在10m宽的公路上铺5cm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">5 / 100</gadget>
<output>1/20 = around 0.05</output>

<gadget id="calculator">10 * (1/20)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">2.5 / (1/2)</gadget>
<output>5</output>

<gadget id="calculator">(1/3) * 28.26 * 5</gadget>
<output>47.1</output>

<result>47.1</result>