Divide the bottom of a cylinder with a base radius of 6cm into several equal parts, cut them and assemble them into an approximate cuboid, the surface area increases by 120cm**2, find the volume of the cylinder.
将一个底面半径为6cm的圆柱的底面等分成若干份，切开后拼成一个近似长方体，表面积增加了120cm**2，求圆柱的体积．
<gadget id="calculator">6 ** 2</gadget>
<output>36</output>

<gadget id="calculator">120 / 2 / 6</gadget>
<output>10</output>

<gadget id="calculator">3.14 * 36 * 10</gadget>
<output>1_130.4</output>

<result>1_130.4</result>