Glue the bottoms of two cylinders with a height of 6 cm together to form a new cylinder whose surface area is 24 cm2 less than the sum of the surface areas of the original two cylinders. Find the volume of each original cylinder.
把两个高都是6厘米的圆柱体的底面黏合在一起，形成一个新的圆柱体，它的表面积比原来两个圆柱体的表面积和减少了24平方厘米，求原来每个圆柱的体积．
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">12 * 6</gadget>
<output>72</output>

<result>72</result>