1) AC=1/2AB=1 CB=1/2AB=1 AO=1/2AC=0.5 OB=3/4AB=1.5
2)AB=3.2X2=6.4 AC=1/2AB=3.2 AO=3.2/2=1.6 OB=3.2+1.6=4.8
1) AC=1/2AB=1 CB=1/2AB=1 AO=1/2AC=0.5 OB=3/4AB=1.5
2)AB=3.2X2=6.4 AC=1/2AB=3.2 AO=3.2/2=1.6 OB=3.2+1.6=4.8