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= 1.600 cm² = 0,16
banyak ubin = 64 : 0,16
= 400
1/5 = ubin putih
4/5 = ubin batik
ubin batik = 4/5 x 400
= 320
☆semoga membantu ★
64 = s²
s = 8
K ruang tamu = 4s = 4x8 = 32m = 3200cm
K ubin = 4x40 = 160m
Jumlah ubin seluruhnya = 3200/160 = 20
Ubin warna putih = 1/5 x 20 = 4
Jadi, ubin motif batik = 20-4 = 16 buah