The height and base radius of a cone are both equal to the side length of a cube. It is known that the volume of the cube is 30 cubic centimeters. What is the volume of the cone in cubic centimeters?
一个圆锥的高和底面半径都等于一个正方体的棱长，已知正方体的体积是30立方厘米，圆锥的体积是多少是立方厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">(1/3) * 3.14 * 30</gadget>
<output>31.4</output>

<result>31.4</result>