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Nhật Lê Minh
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2022-10-26 17:31:07
2022-10-26 17:25:24
Diện tích xung quanh căn phòng là:
(8 + 4,5) x 2 x 4 = 100 (m2)
Diện tích trần căn phòng là:
8 x 4,5 = 36 (m2)
Diện tích toàn phần căn phòng là:
100 + 36 = 136 (m2)
Diện tích cần quét vôi là:
136 - 8,8 = 127,2 (m2)