Zad 7nie umiem wybacz
Zad 8DB = AB√2AB√2 = 12 | :√2AB = 12/√2 = 12√2/2 = 6√2
AD = AB = 6√2
DB = 2BC2BC = 12 | :2BC = 6
CD = BC√3CD = 6√3
Obw = 6√2 cm + 6√2 cm + 6 cm + 6√3 cm = (12√2 + 6 + 6√3) cm.
Odp. Obwód tego czworokąta wynosi (12√2 + 6 + 6√3) cm.
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Zad 7
nie umiem wybacz
Zad 8
DB = AB√2
AB√2 = 12 | :√2
AB = 12/√2 = 12√2/2 = 6√2
AD = AB = 6√2
DB = 2BC
2BC = 12 | :2
BC = 6
CD = BC√3
CD = 6√3
Obw = 6√2 cm + 6√2 cm + 6 cm + 6√3 cm = (12√2 + 6 + 6√3) cm.
Odp. Obwód tego czworokąta wynosi (12√2 + 6 + 6√3) cm.