The height and base radius of a cone are both equal to the edge length of a cube. Given that the volume of the cube is 45 cubic centimeters, find the volume of the cone.
一个圆锥的高和底面半径都等于一个正方体的棱长，己知正方体的体积是45立方厘米，求圆锥的体积．
<gadget id="calculator">45 / 3</gadget>
<output>15</output>

<gadget id="calculator">3.14 * 15</gadget>
<output>47.1</output>

<result>47.1</result>