Răspunsuri

  • Utilizator Brainly
2014-03-02T13:29:59+02:00
Notam dimensiunile lui cu x si y; x/7=y/9=k ⇒ x=7k, y=9k;
P=2x+2y=32k=15,36 cm ⇒ k=0,48 ⇒ x=3,36 cm; y=4,32 cm;
A=x·y=14,5152 cm²=1451,52 mm².