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2014-05-22T21:23:23+03:00
P=2l+2L=102
L=3l

2l+2*3l=102
2l+6l=102
8l=102
l=12,75m
L=3*12,75=38,25m

l+6=12,75+6=18,75m
L+6=38,25+6=44,25m

Psantului=2(l+6)+2(L+6)=2*18,75+2*44,25= 37,5 +88,5=  126m
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