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2014-09-09T16:21:02+03:00
L=23 cm
l=23/10=2.3 cm
P=2(L+l)=2(23+2.3)=2*25.3=50.6 cm
2014-09-09T16:21:24+03:00
2 X lungime +2X latime=50,6            Latimea =2,3  Lungimea =23