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F, P
7.
D
8.
A
9.
B
10.
a - bok kwadratu
4a = 28 cm /:4
a = 7 cm
boki prostokąta: 2a, 2a, 1/2a, 1/2a
2 x 7cm = 14 cm
1/2 x 7cm = 3,5 cm
L= 14 + 14 + 3,5 + 3,5= 35
L= 35 cm
Mam nadzieje że dobrze