Răspunsuri

2014-06-10T18:01:26+03:00
Lungimea I----------I----------I----------I lungimea I----------I----------I---------I latimea I----------I 8 parti => 4800 latimea I----------I 1)Aflam latimea dreptungiului. 4800 : 8 = 600 2)Aflam lungimea dreptungiului. 600 X 3 = 1800 verificare : 1800 + 1800 + 600 + 600 = 4800 R: lungimea = 1800 latimea = 600
2014-06-10T18:11:47+03:00
Perimetrul=4800
suma=  \frac{4800}{2}
       =2400
x=latime
3x=lungimea
3x+x=2400
4x=2400
   x=2400:4
   x=600(latimea)
3x=600x3
   =1800(lungimea)