cone with a base diameter of 20 cm, if the cone is vertically cut into two identical pieces along a base diameter, the surface area will increase by 600 cm2 compared to the original one, and the volume of the cone is requested.
一个圆锥体，底面直径是20厘米，如果沿着一条底面直径把这个圆锥体竖直地切成完全一样的两块，表面积会比原来增加600平方厘米，请求出这个圆锥体的体积．
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 ** 2</gadget>
<output>100</output>

<gadget id="calculator">600 / 2</gadget>
<output>300</output>

<gadget id="calculator">2 / 20</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">300 * (1/10)</gadget>
<output>30</output>

<gadget id="calculator">(1/3) * 3.14 * 100 * 30</gadget>
<output>3_140</output>

<result>3_140</result>