Cut a cylinder into the largest cone, the volume of the cut part is 18cm**3, what is the volume of the cone in cm**3.
把一个圆柱削成一个最大的圆锥，削去部分的体积是18cm**3，这个圆锥的体积是多少cm**3．
<gadget id="calculator">18 / 2</gadget>
<output>9</output>

<result>9</result>