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11/12 * 2=22/12= 1 10/12= 1 5/6
Odpowiedź C
2) wymiary:
2,4 cm x 3,2 cm
P= a *b
P= 2,4 cm * 3,2 cm= 7,68 cm²
Odp. A
3) 5,6 cm *2 + 4,4 cm * 2= 20 cm= 2 dm
Odp. B