A conical sand pile with a base radius of 3 meters and a height of 2 meters is poured into a cylindrical sand pit with a bottom diameter of 4 meters. How deep is the sand in the pit?
一个圆锥形沙堆，底面半径为3米，高2米，将这堆沙倒在底面直径为4米的圆柱形沙坑内，坑内的沙有多少米深．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

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

<gadget id="calculator">3.14 * 4</gadget>
<output>12.56</output>

<gadget id="calculator">2 / 12.56</gadget>
<output>0.159236</output>

<gadget id="calculator">(1/3) * 3.14 * 9 * 0.159236</gadget>
<output>1.500003</output>

<result>1.500003</result>