The height and base radius of a cone are equal to the side lengths of a cube. Given that the volume of a cube is 1.5 cubic decimeters, what is the volume of a cone?
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1.5立方分米，圆锥的体积是多少立方分米？
<gadget id="calculator">1.5 / 3</gadget>
<output>0.5</output>

<gadget id="calculator">3.14 * 0.5</gadget>
<output>1.57</output>

<result>1.57</result>