A cuboid aluminum block with a length, width, and height of 10 cm, 6.4 cm, and 7.85 cm is melted and cast into a cylinder with a base radius of 4 cm. What is the height of this cylinder in cm?
把一块长、宽、高10厘米、6.4厘米、7.85厘米的长方体铝块熔铸成一个底面半径是4厘米的圆柱，这个圆柱的高是多少厘米？
<gadget id="calculator">10 * 6.4 * 7.85</gadget>
<output>502.4</output>

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

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

<gadget id="calculator">502.4 / 50.24</gadget>
<output>10</output>

<result>10</result>