A cylindrical container with a bottom radius of 2dm and a height of 11dm contains water with a water depth of 6dm. Put a stone into the water and submerge it completely. Then measure the water depth in the container to be 10dm. Find the volume of the stone in cubic decimeters ?
一个圆柱体容器，底面半径是2dm，高11dm，里面装有水，水深6dm，把一块石头放入水中并全部浸没，这时量得容器内的水深10dm，求石头的体积是多少立方分米？
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

<gadget id="calculator">3.14 * 4 * 4</gadget>
<output>50.24</output>

<result>50.24</result>