Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let 
be the relation "is congruent to" on the set of all triangles in a plane is
Text Solution
Verified by ExpertsThe correct answer is:
D
Let 
denote the set of all triangles in a plane. Let 
be the relation on 
defined by 
.
(i) Let any triangle 
, we have
is reflexive on 
.
(ii) Let 
, such that 
, then
is symmetric
(iii) Again, let 
such that 
and 
is transitive.
is an equivalence relation.
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