If a cube with an edge length of 9 cm is cut into the largest cylinder, what is the volume of the cut part in cubic centimeters?
把一个棱长9厘米的正方体削成一个最大的圆柱体，削去部分的体积是多少立方厘米？
<gadget id="calculator">9 * 9 * 9</gadget>
<output>729</output>

<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">3.14 * (81/4) * 9</gadget>
<output>572.265</output>

<gadget id="calculator">729 - 572.265</gadget>
<output>156.735</output>

<result>156.735</result>