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# Example 1 of Points and Lines

- Question
- In the figure below, the length of AB is 12, point C lies between point A and point B. If the length of AC is one third of the length of AB, what is the length of BC?

- Solution
- AB = 12 (Given)
- AC = AB ÷ 3 = 12 ÷ 3 = 4
- BC = AB - AC = 12 - 4 = 8
- The length of BC is 8.