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Exercitiile 4; 5; 7 si 9
DAU COROANA !!!!!!!!!!!!!!!


Exercitiile 4 5 7 Si 9 DAU COROANA class=

Răspuns :

4. aria in m: 2.7^2=7.29m^2
aria in cm:72900 cm
5. L=3l
P=51.2 hm
P=2L+2l
P=8l
8l=51.2
l= 6.4 L=19.2
7.13x-2=76
13x=78
x= 6
9. 50×51:2/200×201:2
25×51/100×201(aici simplifici cu 25)
51/804



SPER CA TE AM AJUTAT!!!