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In each of the given pairs of triangles, find which pair of triangles are similar. State the similarity criterion and write the similarity relation in symbolic form:

 

 

 

 

 

 

 

 

Answers:

(iii)

Given,

 

 

∠ACB = ∠PQR = 80o

By SAS similarity theorem, ∆ ACB – ∆ RQP.

 

(iv)

Given,

By SSS similarity theorem,

∆ FED- ∆ PQR