Răspuns :
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
perimetrul=4800
suma= [tex] \frac{4800}{2} [/tex]
=2400
x=latime
3x=lungimea
3x+x=2400
4x=2400
x=2400:4
x=600(latimea)
3x=600x3
=1800(lungimea)
suma= [tex] \frac{4800}{2} [/tex]
=2400
x=latime
3x=lungimea
3x+x=2400
4x=2400
x=2400:4
x=600(latimea)
3x=600x3
=1800(lungimea)