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Question

Name the line given in all possible ways, choosing only two letters at a time from the four given.


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Solution

A line is defined as a straight path that extends infinitely in two directions.

In the given image 4 points are shown A, B, C and D.

The possible ways for naming the line are

AB,AC,AD,BC,BD,CD

But we know that we can write a line AB as BA also.

Hence, the possible ways for naming the lines are

AB,AC,AD,

BC,BD,BA,

CD,CA,CB,

DA,DB,DC


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