Put a cone with a base radius of 2 decimeters and a height of 6 decimeters into a cylindrical cup filled with water with a base radius of 4 decimeters. How many decimeters will the water level rise?
把一个底面半径2分米，高6分米的圆锥，放入一个底面半径4分米的盛水的圆柱形杯子中，水面上升多少分米？
<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">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16</gadget>
<output>50.24</output>

<gadget id="calculator">6 / 50.24</gadget>
<output>0.119427</output>

<gadget id="calculator">(1/3) * 3.14 * 4 * 0.119427</gadget>
<output>0.500001</output>

<result>0.500001</result>