Odpowiedź:
d1=5cm
d2=5cm-1cm=4cm
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5 • (5 - 1) : 2 = 5 • 4 : 2 = 20 : 2 = 10cm^2
powodzonka i miłego dnia :))
Odpowiedź:
d1=5cm
d2=5cm-1cm=4cm