AIME 2022b Problem 15
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Two externally tangent circles and have centers and , respectively. A third circle passing through and intersects at and and at and , as shown. Suppose that , , , and is a convex hexagon. Find the area of this hexagon. [asy] import geometry; size(10cm); point O1=(0,0),O2=(15,0),B=9dir(30); circle w1=circle(O1,9),w2=circle(O2,6),o=circle(O1,O2,B); point A=intersectionpoints(o,w2)[1],D=intersectionpoints(o,w2)[0],C=intersectionpoints(o,w1)[0]; filldraw(A--B--O1--C--D--O2--cycle,0.2fuchsia+white,black); draw(w1); draw(w2); draw(O1--O2,dashed); draw(o); dot(O1); dot(O2); dot(A); dot(D); dot(C); dot(B); label("",8dir(110),SW); label("",5dir(70)+(15,0),SE); label("",O1,W); label("",O2,E); label("",B,N+1/2E); label("",A,N+1/2W); label("",C,S+1/4W); label("",D,S+1/4E); label("",midpoint(O1--O2),N); label("",midpoint(C--D),N); label("",midpoint(A--B),S); label("",o.C+(o.r-1)*dir(270)); [/asy]
Dataset text AIME 1983 to 2026. Quoted with source.
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