Place a conical steel hammer (completely submerged) with a bottom diameter of 4 cm and a height of 15 cm in a cylindrical container with a bottom radius of 10 cm filled with water. How many centimeters does the water level rise?
在一个装有水的底面半径10厘米圆柱形容器放置一个底面直径4厘米，高是15厘米圆锥形钢锤(完全浸没)，水面升高了多少厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

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

<gadget id="calculator">(1/3) * 3.14 * 4 * 15</gadget>
<output>62.8</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100</gadget>
<output>314</output>

<gadget id="calculator">62.8 / 314</gadget>
<output>0.2</output>

<result>0.2</result>