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The sixth grade mathematics, science and education book, Volume II, Jiangsu Education Edition, page 34, question 6.
(1) width: 7*4=28cm.

Length: 7*6=42cm

Height: 12cm

(2) 28 * 42 *12 =14112 cubic centimeter.

(3) (28 * 12+42 * 12+28 * 42) * 2+2000 = (336+504+ 1 176) * 2+2000 = 2065438+.

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