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8. Let ABC be a triangle and denote by A1, A2 the points on the rays opposite to
AB, AC, respectively, satisfying AA1 = AA2 = BC (i.e. A1 is on line AB with A
between A1 and B). Define points B1, B2, C1, C2 analogously. Prove that points
A1, A2, B1, B2, C1, C2 lie on a single circle.

 Jul 3, 2021
 #1
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um you shouldn't really ask for help on your homework...

 Jul 3, 2021

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