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5CB=48
CB=9,6
3/6=(3+DB)/9,6
3×9,6=6×(3+DB)
28.8=18+6DB
6DB=10,8
DB=1,8
AB=3+1,8=4,8
BC=9,6
skala podobieństwa:
7/11,2
|AD| + |DB| = |AB|
3cm + 3cm = 6cm
|AC| = 5cm + 3cm = 8cm
Twierdzenie Pitagorasa
a² + b² = c²
a = 6cm
b = 8cm
6cm² + 8cm² = c²
36 + 64 = c²
100 = c² | √
c = 10 cm
Więc |BC| wynosi 10 cm.
nie wiem o co chodzi z prawdopodobieństwem :/