The height and base radius of a cylinder are equal to the side length of a cube. It is known that the surface area of the cube is 216 square centimeters. What is the volume of the cylinder in cubic centimeters?
一个圆柱的高和底面半径都等于一个正方体的棱长，已知这个正方体的表面积是216平方厘米，圆柱的体积是多少立方厘米．
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">3.14 * 36 * 6</gadget>
<output>678.24</output>

<result>678.24</result>