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Given three collinear points A,B,C , with B between A & C, four different rays can be named using these points AB, BA, BC, & CB. How many different rays can be named?

1 Answer

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Answer:

6 different rays can be named

Explanation:

The total number of rays that can be named by 3 points is the number of permutations of 3 objects taken 2 at a time: 3!/(3-2)! = 6. The 6 rays that can be named are ...

AB AC BC CB CA BA

User Rudresh Panchal
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