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AIME 2022a Problem 11

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Let ABCDABCD be a parallelogram with ∠BAD<90∘.\angle BAD < 90^\circ. A circle tangent to sides DA‾,\overline{DA}, AB‾,\overline{AB}, and BC‾\overline{BC} intersects diagonal AC‾\overline{AC} at points PP and QQ with AP<AQ,AP < AQ, as shown. Suppose that AP=3,AP=3, PQ=9,PQ=9, and QC=16.QC=16. Then the area of ABCDABCD can be expressed in the form mn,m\sqrt{n}, where mm and nn are positive integers, and nn is not divisible by the square of any prime. Find m+n.m+n. [asy] defaultpen(linewidth(0.6)+fontsize(11)); size(8cm); pair A,B,C,D,P,Q; A=(0,0); label("AA", A, SW); B=(6,15); label("BB", B, NW); C=(30,15); label("CC", C, NE); D=(24,0); label("DD", D, SE); P=(5.2,2.6); label("PP", (5.8,2.6), N); Q=(18.3,9.1); label("QQ", (18.1,9.7), W); draw(A--B--C--D--cycle); draw(C--A); draw(Circle((10.95,7.45), 7.45)); dot(A^^B^^C^^D^^P^^Q); [/asy]

Dataset text AIME 1983 to 2026. Quoted with source.

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