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Given that Delta ABC ~ Delta PQR, CM and...

Given that `Delta ABC ~ Delta PQR`, CM and RN are respectively the medians of `Delta ABC and Delta PQR`. Prove that
(i) `Delta AMC ~ Delta PNR`
(ii) `(CM)/(RN) = (AB)/(PQ)`
(iii) ` Delta CMB ~ Delta RNQ`

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