When a cylinder is shortened by 2 cm, the surface area is reduced by 37.68 cm**2, and the volume is reduced by how many cm**3.
把一个圆柱体截短2厘米后，表面积减少37.68厘米**2，体积减少了多少厘米**3．
<gadget id="calculator">37.68 / 2 / 3.14 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 2</gadget>
<output>56.52</output>

<result>56.52</result>