Question

fie ABC puncte coliniare in aceasta ordine cu AB=12 cm BC=8cm Calculati AB/BC+AC/AB

Answer 1

Punctele sunt coliniare, deci AC=AB+BC ,de unde AC= 20 cm

AB/BC+AC/AB =  12/8 + 20 /12 = 3 / 2 + 5 / 3= ( 3 * 3+ 2 * 5)/6 = (9+10)/6 = 19/6

Answer 2

AB/BC=1,5cm

AC=AB+AC=20cm

AC/AB=1,6 CM

AB/BC+AC/AB=2,1CM