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4,5 urgent dau coroana

45 Urgent Dau Coroana class=

Răspuns :

4.
A______B___C
AC=AB+BC
BC=AC-AB
BC=5-3
BC=2

5.
Ac=AB+BC
AC=3.5+5
AC=5.5
BD=BC+CD
BD=2+4.8
BD=6.8
AD=AB+BC+CD
AD=3.5+2+4.8
AD=10.3