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= 196 m²
= 1.960.000 cm²
Ukuran ubin = 70 × 70
= 4.900 cm
Banyak ubin yang diperlukan = 1.960.000/4.900
= 400
Jadi, banyak ubin yang diperlukan = 400 ubin
Luas ubin = 70 * 70 = 4900
Banyak ubin di lantai = luas lantai/luas ubin = 1960000/4900 = 400
semoga membantu ^^