​Dear expert , ABCD  is a llgm where P is the mid pont of DC and Q is the mid point on AC such that CQ = 14 means 14 of AC if PQ produced meet BC at R prove that R is the mid point of BC  please explain me first if we join B and D and suppose it cuts  AC at O proof OC = 12 of AC as 1 eq and CD is 14 means 1 by 4 of AC as 2 eq how can you get CD = 12  of OC please explain me this step in detail
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