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ex.1)Completati spatiile punctate :
a)17 dam2=...m2=...dm2=...ari
b)3800m2=...cm2=...dam2=...hm2
c)752cm2=...dm2=...mm2=...m2
d)234hm2=...m2=...km2...=...cm2
e)0,5km2=...m2=...hm2=...dm2
f)4500000mm2=...dm2=...m2=...cm2

ex2)calculati aria unui patrat cu latura de lungime:
a)3 cm
b)12 m
c)2,5dam
d)0,3km
e)120mm
f)0,01 hm

Răspuns :

Amaliastefania2
a)17 dam2=1.700m2=170.000dm2
b)3.800m2=38.000.000cm2=38dam2=0,38hm2
c)752cm2=7,52dm2=75.200mm2=0,0752m2
d)234hm2=2.340.000m2=2,34km2=23.400.000.000cm2
e)0,5km2=500.000m2=50km2=50.000.000dm2
f)4500000mm2=450dm2=4,5m2=45000cm2

a)A=LxL=9cm2
b)A=144m2
c)A=6,25 dam2
d)A=0,09km2
e)A=14400mm2
f)A=0,0001hm2


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