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MathNet 2024-part-06 — 165 problems (EN–VI) Question 111

Math Olympiad Vault · MathNet 2024-part-06 — 165 problems (EN–VI)

Question 111

Let $ABCD$ be a rectangle whose vertices are labeled in counterclockwise order with $AB=32$ and $AD=60$. Rectangle $AB^{\prime}C^{\prime}D^{\prime}$ is constructed by rotating $ABCD$ counterclockwise about $A$ by $60^{\circ}$. Given that lines $BB^{\prime}$ and $DD^{\prime}$ intersect at point $X$, compute $CX$.