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2014-08-04T09:52:22+03:00
2* l=L
Perimetru=2*L+2*l =48
2L+L=3L=48
L=48/3=16
l=16/2=8

=> Lungimea=16cm
latimea=8cm
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2014-08-04T11:27:57+03:00
Perimetrul = suma laturilor x 2
suma=perietrul :2
suma=48:2
suma=24

x=latimea
2x=lungimea
x+2x=24
3x=24
x=8 latimea
8x2=16 lungimea
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