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Question
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:
Solution
We have :
`(DE)/(QR)=2.5/5=1/2`
`(EF)/(PQ)=2/4=1/2`
`(DF)/(PR)=3/6=1/2`
⇒` (DE)/(QR)=(EF)/(PQ)=(DF)/(PR)`
Therefore, by SSS similarity theorem, Δ FED- Δ PQR
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