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1/12 X = 140
X= 140 × 12
X = 1680 m^2
Luas kolam ikan = 1/4 × 1680 = 420 m^2
=12/12-11/12
=1/12x=140
=x. =140×12=1680
luas kolam ikan=1/4×1680
=420m²