一个圆柱，如果沿着它的直径切开，则表面积增加60平方厘米；如果把这个圆柱切割成3节小圆柱，则表面积增加113.04平方厘米．原圆柱的体积是______立方厘米．
113.04÷4÷3.14=9，
因为3×3=9，所以这个圆柱的底面半径是3厘米，
所以圆柱的高是：60÷2÷（3×2），
=30÷6，
=5（厘米），
则圆柱的体积是：3.14×32×5，
=3.14×9×5，
=141.3（立方厘米），
答：原来圆柱的体积是141.3立方厘米．
故答案为：141.3．
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