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2022-04-29 20:00:37
Diện tích xung quanh là:
( 10+8) x 3,5 x 2= 126 ( m2 )
Diện tích trần nhà là:
10 x 8= 80 ( m2 )
Diện tích toàn phần là:
80+126 = 206 (m2)
Diện tích cần quét vôi của lớp học là:
206 - 16 = 190 ( m2 )
Đáp số: 190 m2
2022-01-04 14:38:13