In a cylindrical bucket, put a section of round steel with a section radius of 5 cm. If the round steel is completely submerged in water, the water level in the bucket will rise by 10 cm. If the round steel in the water is 6 cm out of the water surface, the bucket will The sleep in it drops by 2 centimeters, find the volume of this section of round steel.
在一个圆柱形水桶里，放进一段截面半径是5厘米的圆钢，如果圆钢全部浸没在水中时，桶里的水面上升10厘米，如果把水中的圆钢路出水面6厘米时，桶里的睡眠就下降2厘米，求这段圆钢的体积．
<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3.14 * 25 * 3 * 10</gadget>
<output>2_355</output>

<result>2_355</result>