Difference between revisions of "Mock AIME 6 2006-2007 Problems/Problem 13"

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==Solution==
 
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[[File:Mock_AIME_6_P13.png|600px]]
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~Tomas Diaz. orders@tomasdiaz.com
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{{alternate solutions}}

Revision as of 02:12, 26 November 2023

Problem

Consider two circles of different sizes that do not intersect. The smaller circle has center $O$. Label the intersection of their common external tangents $P$. A common internal tangent interesects the common external tangents at points $A$ and $B$. Given that the radius of the larger circle is $11$, $PO=3$, and $AB=20\sqrt{2}$, what is the square of the area of triangle $PBA$?

Solution

Mock AIME 6 P13.png

~Tomas Diaz. orders@tomasdiaz.com

Alternate solutions are always welcome. If you have a different, elegant solution to this problem, please add it to this page.