A cube with a side length of 9 cm is cut into the largest cone, what is the volume of the cone?
将一个棱长9厘米的正方体木块削成一个最大的圆锥，圆锥的体积是多少．
<gadget id="calculator">9 / 2</gadget>
<output>9/2 = around 4.5</output>

<gadget id="calculator">(9/2) ** 2</gadget>
<output>81/4 = around 20.25</output>

<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<gadget id="calculator">3.14 * (81/4) * 3</gadget>
<output>190.755</output>

<result>190.755</result>