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AMC 12 2025a Problem 11

  • Paper

The orthocenter of a triangle is the concurrent intersection of the three (possibly extended) altitudes. What is the sum of the coordinates of the orthocenter of the triangle whose vertices are A(2,31),B(8,27),A(2,31), B(8,27), and C(18,27)C(18,27)?

\textbf{(A)}~5 \textbf{(B)}~17 \textbf{(C)}10+4\sqrt{17} +2\sqrt{13} \textbf{(D)}\frac{113}{3} \textbf{(E)}~54

Dataset text AMC 12 2000 to 2025. Quoted with source.

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