oblicz pola powierzchni A. 3m x 4m B.2,5 cm x 4 cm C.4,4 dm x 16 dm D.15 mm x 8 mm E.160 mm x 0,16 m F.2,4 dm x 0,8 m
a)3x4=12m2 b=2,5x4=10cm2 c=4,4x16=70,4dm2 d=15x8=120mm2 e=160x0,16(m)=160x160(mm)=25600mm2 f=2,4x0,8(m)=2,4x8=19,2
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a)3x4=12m2 b=2,5x4=10cm2 c=4,4x16=70,4dm2 d=15x8=120mm2 e=160x0,16(m)=160x160(mm)=25600mm2 f=2,4x0,8(m)=2,4x8=19,2