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fie A,B,C,D patru puncre coliniare luate in aceasta ordine AB=8cm;BD=18 cm ; BC =5 cm .Aflati AC,AD,DC.

Răspuns :

AC= ab+bc= 8+5= 13 cm
AD=ab+bd= 8+18= 26 cm
DC= bd-bc=18-5= 13 cm
AC = AB + BC = 8 + 5 = 13cm
AD = AB + BD = 8 + 18 = 26cm
DC = BD - BC = 18 - 5 = 13cm