If a cylinder with a base radius of 3 cm and a height of 6 cm is cut into the largest cone, what is the volume of the cut part?
把一个底面半径为3cm，高是6cm的圆柱，削成一个最大的圆锥，削去的部分的体积是多少．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3.14 * 9 * 6 * (2/3)</gadget>
<output>113.04</output>

<result>113.04</result>