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ex 6 plssss repede dau coroana

Ex 6 Plssss Repede Dau Coroana class=

Răspuns :

P = 128 cm
L = 3 * l
P = 2 * L + 2 * l
128 = 2 * 3 l + 2 l
128 = 8 l
l = 128 : 8
l = 16 cm latimea
L = 3 * 16
L = 48 cm lungimea
    Succes!!!!