If the height of a cylinder is reduced by 2 centimeters, its surface area will be reduced by 37.68 square centimeters, so how many cubic centimeters will the original volume be reduced.
一个圆柱体如果高减少2厘米，它的表面积就减少37.68平方厘米，那么原来的体积减少了多少立方厘米．
<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>