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helpp!!! DAU 50 DE PUNCTEEE!!! ​

Helpp DAU 50 DE PUNCTEEE class=

Răspuns :

1.
a) 15 dm
b) 1370 dam
c) 1248 cm^2
d) 8 cm^3

2.
a) L = 6 cm
l = 4 cm
P = 20 cm
A = 24 cm^2
b) P = 20 cm
A = 25 cm^2