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Rozwiązane

daje dajjjjjjjjjjjjjjjjjjjj​

Daje Dajjjjjjjjjjjjjjjjjjjj class=

Odpowiedź :

Odpowiedź:

21 = 4 + x + 5 + x

21 = 2x + 9

2x = 12

X = 6

Bok2 = 6cm + 5cm = 11cm

Bok3 = 6cm

Szczegółowe wyjaśnienie:

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