In a cylindrical container with a bottom radius of 10 cm and a height of 30 cm, and a water depth of 8 cm, a cuboid iron block with a length and width of 8 cm and a height of 15 cm should be placed in the container. In the water, how many centimeters does the water surface rise (take 3.14 for π).
一个底面半径是10厘米，高30厘米的圆柱形容器中，水深8厘米，要在容器中放入长和宽都是8厘米，高是15厘米的长方体状的铁块，铁块竖放在水中，那么水面上升多少厘米(π取3.14)．
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

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

<gadget id="calculator">8 * 8</gadget>
<output>64</output>

<gadget id="calculator">314 - 64</gadget>
<output>250</output>

<gadget id="calculator">8 / 250</gadget>
<output>4/125 = around 0.032</output>

<gadget id="calculator">3.14 * 100 * (4/125)</gadget>
<output>10.048</output>

<gadget id="calculator">10.048 - 8</gadget>
<output>2.048</output>

<result>2.048</result>