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13,5cm:4,5=3cm
13,5cm-3cm=10,5cm
Odp.: 3cm, 3cm, 10,5cm i 10,5cm.
mialam to samo na matmie niedawno
9x=27cm/÷9
x=3cm-krótszy bok
3,5x=10,5cm-dłuższy bok