Two cones, A and B, have the same volume. The radius of the base of cone A is 4 cm, the radius of the base of cone B is 6 cm, and the height of cone A is 18 decimeters. What is the height of cone B?
甲乙两个圆锥体积相等，甲圆锥底面半径为4厘米，乙圆锥底面半径为6厘米，甲圆锥的高为18分米，那么乙圆锥的高为多少分米．
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">16 * 18</gadget>
<output>288</output>

<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">288 / 36</gadget>
<output>8</output>

<result>8</result>