What is the volume of a cone with a height of 30 cm and a base diameter of 10 cm?
有一个高为30厘米，底面直径为10厘米的圆锥形零件，它的体积是多少立方厘米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">(1/3) * 3.14 * 25 * 30</gadget>
<output>785</output>

<result>785</result>