A cylindrical glass container has a bottom radius of 6 cm and a water depth of 20 cm. When a stone is placed in a container, the water level rises by 3 cm. What is the volume of this stone in cubic centimeters?
一个圆柱形玻璃容器的底面半径是6厘米，水深20厘米．把一个石块放入容器中，水面上升了3厘米．这个石块的体积是多少立方厘米．
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36 * 3</gadget>
<output>339.12</output>

<result>339.12</result>