Pole kwadratu ABCD wynosi 64m 2. Bok kwadratu KLMN ma długość 7m. Oblicz pole zielonej figury...
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Pc = P1 - P2
P1 = 64cm^2
P2 = a^2
P2 = 7m * 7m = 49 m^2
Pc = 64m^2 - 49m^2
Pc = 15m^2