2019 AMC 12B Problem 20


Points A(6,13)A(6,13) and B(12,11)B(12,11) lie on circle ω\omega in the plane. Suppose that the tangent lines to ω\omega at AA and BB intersect at a point on the xx -axis. What is the area of ω\omega ?

(A) 83π8(B) 21π2(C) 85π8(D) 43π4(E) 87π8\textbf{(A) }\frac{83\pi}{8}\qquad\textbf{(B) }\frac{21\pi}{2}\qquad\textbf{(C) }\frac{85\pi}{8}\qquad\textbf{(D) }\frac{43\pi}{4}\qquad\textbf{(E) }\frac{87\pi}{8}


Full credit goes to MAA for authoring these problems. These problems were taken on the AOPS website.

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Category: AMC 12B
Points: 3
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