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Calculati perimetrul unui patrat ce are katura egala cu:

a)12m
b)130cm
c)2,8hm
d)0,4dam
e)1,7cm
f)3,24mm


Răspuns :

a=48 m 
b=502cm
c=11,2hm
d=1.6dam
e=6.8cm
f=12.96