A cylindrical glass container with a base radius of 8 cm and a height of 25 cm. Put an iron block after it is filled with water, and 1004.8 grams of water overflows. If the iron block is taken out, how many centimeters will the water level drop? (Weighs 1 gram per milliliter of water)
一个圆柱形玻璃容器，底面半径8厘米，高25厘米．盛满水后放入一个铁块，溢出1004.8克水，若取出铁块，水面会下降多少厘米？(每毫升水重1克)
<gadget id="calculator">8 ** 2</gadget>
<output>64</output>

<gadget id="calculator">3.14 * 64</gadget>
<output>200.96</output>

<gadget id="calculator">100.48 / 200.96</gadget>
<output>0.5</output>

<result>0.5</result>