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Kelas 7 MatematikaBab Perbandingan dan Aritmatika Sosial
Seharusnya, lebar lantai 16 m
Banyak ubin
= luas lantai : luas ubin
= (p1 . l1) : (s . s)
= (22 m . 16 m) : (50 cm . 50 cm)
= (22 . 100 cm . 16 . 100 cm) : (50 cm . 50 cm)
= 1.408 ubin