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2+2+3+3=10cm
Prostokąt 2
12+12+28+28=80km
Prostokąt 3
100-31x2=100-62=38mm 38:2=19mm
Prostokąt 4
100-45x2=10m 10:2=5m
Prostokąt 5
2m=200cm 200-2x50=100cm 100:2=50cm
Prostokąt 2) 80km
Prostokąt 3) 19mm
Ptostokąt 4) 5m
Prostokąt 5) 5m