A cone has a base radius of 0.5 meters and a height of 6 meters. What is the volume of this cone.
一个圆锥的底面半径是0.5米，高是6米．这个圆锥的体积是多少．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">0.5 ** 2</gadget>
<output>0.25</output>

<gadget id="calculator">(1/3) * 3.14 * 0.25 * 6</gadget>
<output>1.57</output>

<result>1.57</result>