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用兩個長4cm,寬4cm,高1cm的長方體拼成一個大長方體,這個長方體的表面積最大是多少?最小是多少? 最大是(4×4+4×1+4×1)×2×2-(4×1)×2 =96-8 =88平方釐米 最小是(4×4+4×1+4×1)×2×2-(4×4)×2 =96-32 =64平方釐米
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