If the edge length of a cube is 9cm, cut it into the largest cylinder, what is the volume of the cylinder in cm**3.
如果一个正方体木块的棱长是9cm，把它削成一个最大的圆柱体，圆柱的体积是多少cm**3．
<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>

<result>572.265</result>