The diameter of the bottom surface of a cylindrical container is 12 cm. When an iron block is put into the container, the water level rises by 2 cm. What is the volume of this iron block?
一个圆柱形容器的底面直径为12厘米，把一个铁块放进这个容器后，水面上升了2厘米．这个铁块的体积是多少？
<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36 * 2</gadget>
<output>226.08</output>

<result>226.08</result>