Example 1easy
- A)A) 5
- B)B) 10
- C)C) 15
- D)D) 20
Step-by-step solution
- To form a line segment, we need to choose 2 points out of the given 5 points.
- The number of ways to choose 2 points from 5 is given by the combination formula nC2 = n × (n-1) / 2.
- Substituting n = 5, we get 5 × (5-1) / 2 = 5 × 4 / 2 = 20 / 2 = 10.
Answer: B) 10