Oblicz pole ośmiokąta wiedząc że każdy bok ma 9cm.Czy dzieliłeś figure? Jak obliczyłeś pole?
P=2a^2 (1+\sqrt{2})
P=2*81* (1+\sqrt{2})
P=162 (1+\sqrt{2}) [cm^2]
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P=2a^2 (1+\sqrt{2})
P=2*81* (1+\sqrt{2})
P=162 (1+\sqrt{2}) [cm^2]