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Thượng Huyền Tam - Akaza
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0
2023-05-03 16:11:25
2023-05-03 16:09:19
2023-03-25 16:16:42
easy
người thợ đó gấp mảnh vải thành 4 phần, rồi cắt bỏ đi 1 phần.(vì tỉ số của 1 và 4/3 là 3/4)
LIKE CHO UPPER MOON THREE AKAZA NHA!!!
2023-03-23 17:18:04
2023-03-19 17:50:28
2023-03-18 17:58:19
ta có công thức là: n x (n-1):2
(bạn Hà làm đúng rồi)