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2014-04-10T16:48:51+03:00
Aplic T Pitagora in trg dreptunghic isoscel unde notez AC=AB=x
BC^2=x^2+x^2=2x^2=144 ⇒ x^2=144:2=72 ⇒ x=v72=v36*2=6v2
perimetrul= AB+AC+BC=6V2+6V2+12=12V2+12=12(1+V2)
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