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2014-04-02T14:55:05+03:00
P=2L+2l=420,L=4l,=>  8l+2l=420=>10l=420,l=42,L=168,UNDE P-PERIMETRUL,L-lungimea dreptunghi ,l-latimea dreptunghi

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2014-04-02T15:01:11+03:00
Pdreptunghilui =2L+2l=420,L=4l,=>  8l+2l=420=>10l=420,l=42,L=168,UNDE perimetrul,L-lungimea dreptunghi ,l-latimea dreptunghi
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