A cylinder of iron with a base radius of 3 cm and a height of 2 cm is melted and cast into a cone. What is the volume of the cone in cubic centimeters?
把一个底面半径是3厘米，高是2厘米的圆柱体铁块，熔化后铸成一个圆锥体，圆锥体的体积是多少立方厘米．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>

<result>56.52</result>