AAI ATC Junior Executive 27 Dec 2023 Shift 1 Paper

Question : 106 of 120

Marks: +1, -0

Which of the following functions is symmetric, but neither reflexive nor transitive?

R = {(T1, T2) : T1 is congruent to T2, where T is the set of triangles in a plane}
R = {(T1, T2) : T1 is similar to T2, where T is the set of triangles in a plane}
R = {(L1, L2) : L1 is parallel to L2, where L is the set of lines in a plane}
R = {(L1, L2) : L1 is perpendicular to L2, where L is the set of lines in a plane}

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