Afla dimensiunile unui dreptunghicare are perimetrul de 298 cm și lățimea cu 7 cm mai mica decât treimea lungimii

Răspunsul a fost dat de: USER9556
30 Agustus 2025 matematica 5 minute
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Clasă: Education Materie: matematica
Afla dimensiunile unui dreptunghicare are perimetrul de 298 cm și lățimea cu 7 cm mai mica decât treimea lungimii
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Cel mai bun răspuns
(148)
2*(L+l)=298:2
L+l=149 cm semiperimetrul
L=1/3+7
1/3+7+l=149
1/3+7+3l=447
4l +7=447-7
4l=440:4
l=110cm
L=39cm
Răspunsul a fost dat în data 30 Agustus 2025

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