As shown in the figure, C is the midpoint of line AB and D is the midpoint of line AC. given that the sum of the lengths of all line segments in the figure is 26, the length of line AC is calculated A———D———C——————B Use because so answer

As shown in the figure, C is the midpoint of line AB and D is the midpoint of line AC. given that the sum of the lengths of all line segments in the figure is 26, the length of line AC is calculated A———D———C——————B Use because so answer

From the question
AD+AC+AB+DC+DB+CB=AD+2AD+4AD+AD+3AD+2AD=13AD=26
Ad = 2
AC=2AD=4