CM and RN are respectively the medians of ∆ ABC and ∆ PQR. If ∆ ABC ~

This question was asked in Ex 6.3, 1 (ii)

CM and RN are respectively the medians of ∆ ABC and ∆ PQR. If ∆ ABC ~ ∆ PQR, prove that : ∆AMC ~∆ PNR