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2023-07-19 08:53:59
dài lắm bạn ạ
2023-05-27 22:34:41
Diện tích của miếng bìa hình tam giác là: 240 cm2
Chiều cao của miếng bìa hình tam giác là:
240 2 : 18 = (cm)
Đáp số: cm