Răspuns :
Pai aflam AB:
80:4=20 cm
Aflam AC:
20×3=60 cm
Deci varianta corecta este b)60 cm
Sper ca te am ajutat si mult succes la teme ^-^
80:4=20 cm
Aflam AC:
20×3=60 cm
Deci varianta corecta este b)60 cm
Sper ca te am ajutat si mult succes la teme ^-^
A----B------------C
BC=3AB
AC=80
AC=AB+3AB=4AB
AB=80:4=20 cm
BC=20×3=60 cm
BC=3AB
AC=80
AC=AB+3AB=4AB
AB=80:4=20 cm
BC=20×3=60 cm