Odpowiedź:
b) P=3•5-5=15-5=10m²
c) P=5•5-3•3=25-9=16m²
d) P=5•5-2•4=25-8=17m²
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Odpowiedź:
b) P=3•5-5=15-5=10m²
c) P=5•5-3•3=25-9=16m²
d) P=5•5-2•4=25-8=17m²