Cut a cylinder into the largest cone. It is known that the circumference of the bottom of the cone is 6.28 cm and the height is 10 cm. What is the volume of the cut part?
把一个圆柱体削成一个最大的圆锥体，已知圆锥体的底面周长6.28厘米，高10厘米，削去部分的体积是多少？
<gadget id="calculator">6.28 / 3.14 / 2</gadget>
<output>1</output>

<gadget id="calculator">1 ** 2</gadget>
<output>1</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">3.14 * 1 * 10 * (2/3)</gadget>
<output>20.933333</output>

<result>20.933333</result>