Răspuns :
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latime + lungime =perimetrul :2
5p= 100:2
5p=50
p=10
latime=10
lungime=10*4=40
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latime + lungime =perimetrul :2
5p= 100:2
5p=50
p=10
latime=10
lungime=10*4=40
Perimetru dreptunghi = 100m
latimea = l
lungimea = L
l = L : 4
L = 4 x l
P = 2xL + 2xl = 2x4xl + 2xl = 100
8xl + 2xl=100
10xl = 100
l = 10m
L = 4xl = 40m
latimea = l
lungimea = L
l = L : 4
L = 4 x l
P = 2xL + 2xl = 2x4xl + 2xl = 100
8xl + 2xl=100
10xl = 100
l = 10m
L = 4xl = 40m