Một công ty Container cần thiết kế cái thùng hình...
Câu hỏi: Một công ty Container cần thiết kế cái thùng hình hộp chữ nhật, không nắp, có đáy hình vuông, thể tích 108 m3. Các cạnh hình hộp và đáy là bao nhiêu để tổng diện tích xung quanh và diện tích tích của một mặt đáy là nhỏ nhất.![](data:image/png;base64,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)
A. Cạnh đáy hình hộp là 3 m, chiều cao là 3 m
B. Cạnh đáy hình hộp là 3 m, chiều cao là 6 m
C. Cạnh đáy hình hộp là 9 m, chiều cao là 3 m
D. Cạnh đáy hình hộp là 6 m, chiều cao là 3 m
Câu hỏi trên thuộc đề trắc nghiệm
30 bài trắc nghiệm toán thực tế ôn thi THPT QG năm 2018 môn Toán