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Finally radical axis in National

Source:

October 23, 2024

geometrypower of a pointradical axisChile

Problem Statement

Let

AD

and

BE

be altitudes of triangle

\triangle ABC

that meet at the orthocenter

H

. The midpoints of segments

AB

and

CH

are

X

and

Y

, respectively. Prove that the line

XY

is perpendicular to line

DE

.

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