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

Question

Philoid · Accepted Answer

Let’s start with the A,

AB, AC, and AD

BC, BD and BA

CD, CA and CB

DA, DB and DC

So,

AB, AC, AD, BC, BD, BA, CD, CA, CB, DA, DB and DC are the all possible ways to name the given line.