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MathNet 2021 — Part 04 Question 22

Math Olympiad Vault · MathNet 2021 — Part 04

Question 22

Let $ABCD$ be a parallelogram. Let $E$ be the midpoint of $AB$ and $F$ be the midpoint of $CD$. Points $P$ and $Q$ are on segments $EF$ and $CF$, respectively, such that $A$, $P$, and $Q$ are collinear. Given that $EP = 5$, $PF = 3$, and $QF = 12$, find $CQ$.