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Georgiana680
a fost răspuns

calculati aria unui patrat care are perimetrul:20cm;3,4dm;5,24m;1km

Răspuns :

Cristinatibulca
P=4l
4l=20, l=20:4=5cm
4l=3,4, l=3,4:4=0,85 dm
4l=5,24, l=5,24:4=1,31 m
4l=1, l=1:4=0,25 km

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