Cut a cube of wood with side length 20 cm into the largest cylinder, what is the volume of this cylinder in cubic centimeters?
把一个棱长为20厘米的正方体木块削成一个最大的圆柱体，这个圆柱体的体积是多少立方厘米．
<gadget id="calculator">20 / 2</gadget>
<output>10</output>

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

<gadget id="calculator">3.14 * 100 * 20</gadget>
<output>6_280</output>

<result>6_280</result>