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Nguyễn Quốc Phong
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2023-01-12 18:53:30
Trang là người cuối cùng
2023-01-12 18:52:30
Những cây bút màu
2023-01-12 18:52:01
2023-01-12 18:51:04
Chiều cao tam giác là : 27 x 4 : 5 = 21,6 ( cm )
Diện tích tam giác là : 27 x 21,6 : 2 = 291,6 ( cm2 )