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A. Caû 3 caâu ñeàu ñuùng. Caâu 13: Moät hình laäp phöông coù caïnh laø 3cm. Vaäy theå tích cuûa hình laäp phöông laø: A.. Moät keát quaû khaùc. Theå tích hình laäp phöông laø bao nhieâu[r]
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