Point C lies on line AB between points A and B. Find the length of the segment BC if AB = 39 and AC = 17.

If point C lies on the straight line AB between points A and B, then AB = AC + BC. Thus, the length of the segment BC = AB – AC. Since AB = 39 and AC = 17, then BC = 39 – 17 = 22.
Answer: the length of the BC segment is 22.



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