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28/21=1 1/3
8*1 1/3=10 2/3
7*1 1/3=10 1/3
6*1 1/3=10
8cm + 6cm + 7cm= 21cm
Obwód trójkąta ABC:
28cm
Obliczanie skali podobieństwa:
28cm/21cm= 4/3
Obliczanie boków trójkąta ABC:
8cm * 4/3= 10⅔cm
6cm * 4/3= 8cm
7cm * 4/3= 9⅓cm