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Bbyyaa07
a fost răspuns

Calculati perimetrul unui patrat care are: a) 12 m; b)130 cm ;c)2,8hm; d)0,4dam;e)1,7 cm;3,24 mm

Răspuns :

Doinitanegru1998
a)12*12=144m
b)130*130=16900cm
c)2.8*2.8=7.84hm
d)0.4*0.4=0.16dam
e)1.7*1.7=2.89cm
f)3,24*3.24=10.4976
A patratului=4a
a) 12*4=48 m b) 130*4=520 cm c) 2,8*4=11,2 hm d) 0,4*4=1,6 dam e) 1,7*4=6,8 cm 3,24*4=12,96 mm