Q. 124.0( 65 Votes )

# Show that the rel

Answer :

It is given that the relation R defined in the set A of all triangles as

R = {(T1, T2): T1 is similar to T2},

Now, R is reflexive as every triangle is similar to itself.

Now, if (T1, T2) ϵ R, then T1 is similar to T2.

T2 is similar to T1.

(T1, T2) ϵ R

Therefore, R is symmetric.

Now, if (T1, T2), (T2, T3) ϵ R,

T1 is similar to T2 and T2 is similar to T3.

T1 is similar to T3.

(T1, T3) ϵ R

Therefore, R is transitive.

Therefore, R is equivalence relation.

Now, we can see that, Therefore, the corresponding sides of triangles T1 and T3 are in the same ratio.

Thus, triangle T1 is similar to triangle T3.

Therefore, T1 is related to T3.

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