The circumference of the bottom of a cylindrical measuring cup is 25.12 cm, and the height is 10 cm. After filling it with water, it is poured into a cuboid container with a length of 10 cm and a width of 8 cm. What is the height of the water surface in cm?
一个圆柱形量杯底面周长是25.12厘米，高是10厘米，把它装满水后，再倒入一个长10厘米，宽8厘米的长方体容器中，水面高多少厘米？
<gadget id="calculator">25.12 / 3.14 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">10 / 80</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">3.14 * 16 * (1/8)</gadget>
<output>6.28</output>

<result>6.28</result>