stone is completely submerged in a cylindrical tank with a bottom radius of 10 cm, and the water level rises by 2 cm. What is the volume of this stone?
一块石头完全浸没在一个底面半径是10厘米的圆柱形水箱中，水面上升了2厘米．这块石头的体积是多少？
<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">3.14 * 100 * 2</gadget>
<output>628</output>

<result>628</result>