Odpowiedź:
Obwód: 3x + 3x + x + x + 2x + 2x + 4x + 4x = 40
20x = 40 /:20
x = 2
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Odpowiedź:
Obwód: 3x + 3x + x + x + 2x + 2x + 4x + 4x = 40
20x = 40 /:20
x = 2