After cutting a cylinder with a height of 10cm into a cuboid along the radius, the surface area increases by 240cm**2. What is the volume of the cylinder in cm**3?
把一个高是10cm圆柱体沿着半径切拼成一个长方体后，表面积增加了240cm**2，这个圆柱体的体积是多少cm**3．
<gadget id="calculator">240 / 2 / 10</gadget>
<output>12</output>

<gadget id="calculator">12 ** 2</gadget>
<output>144</output>

<gadget id="calculator">3.14 * 144 * 10</gadget>
<output>4_521.6</output>

<result>4_521.6</result>