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afla in fiecare caz perimetrulunui dreptunghi folosind orice metoda. a)l=4m,L=8m b)l=6cm,L=9cm c)l=5mm,L=10mm

Răspuns :

a)P=2•L+2•l P=2•8+2•4 P=16+8 P=24m b)P=2•L+2•l P=2•9+2•6 P=18+12 P=30cm c)P=2•L+2•l P=2•10+2•5 P=20+10 P=30mm