Cut off a section of a cylinder with a height of 12 cm, if the height of the cut part is 3 cm, then the surface area of the remaining part is reduced by 28.26 cm2. What is the volume of the original cylinder in cubic centimeters
把一个高12厘米的圆柱体截去一段，如果截取部分的高是3厘米，那么剩下部分的表面积比原来减少28.26平方厘米．原来的圆柱体体积是多少立方厘米
<gadget id="calculator">28.26 / 3 / 3.14 / 2</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 ** 2</gadget>
<output>2.25</output>

<gadget id="calculator">3.14 * 2.25 * 12</gadget>
<output>84.78</output>

<result>84.78</result>