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P dreptunghi=208 cm.L=3l.afla 2lxL

Răspuns :

P=208
2L+2l =208
6l +2l =208
8l=208
l=26
208=2l+2L
208=2l+2*3l
208=2l+6l
208=8l
l=208:8
l=26
L=3*26=78

2lxL=2*26*78=52*78=4056