The radius of the bottom surface of a large cylinder of wood is long (2/5). Cut this wood into two small cylinders of wood. The sum of their surface areas is 108 square centimeters. What is the area of the bottom of this cylinder of wood in square meters? centimeter?
一个大圆柱体木料的底面半径是长的(2/5)，把这根木料横截成两根小圆柱木料，它们表面积的和为108平方厘米，这根圆柱体木料的底面积是多少平方厘米？
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