It is known that AC = 8 cm, BC = 2 cm, BD = 6 cm, which means that point B is between points A and C, and point C is between points B and D.
There are two options for solving this problem.
1) СD = ВD – ВС;
CD = 6 – 2 = 4 (cm) – the length of the CD segment;
2) AD = AC + CD;
AD = 8 + 4 = 12 (cm) – the length of the segment AD.
1) AB = AC – BC;
AB = 8 – 2 = 6 (cm) – length of the segment AB;
2) AD = AB + BD;
AD = 6 + 6 = 12 (cm) – the length of the segment AD.
Answer: 12 cm length of the segment AD.
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