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= pl
= 12 m × 9 m
= 108 m^2 = 108 × 10000 cm^2 = 1080000 cm^2
L 1 ubin
= s^2
= 30^2
= 900 cm^2
Banyak ubin yg diperoleh
= 1080000 cm^2/900 cm^2 × 1 buah
= 1200 buah
Jawaban: C
Alantai = 12m x 9m
= 108 m2
Aubin = 0,3 x 0,3
= 0,09 m2
Ditanya :
Banyak ubin ?
Penyelesaian :
= 108 / 0,09
= 1200 ubin ( C )