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Given triangle ABC the point J is the center
SUBMITTED BY:
latifbrur
DATE:
March 1, 2018, 3:19 p.m.
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Given triangle ABC the point J is the center of the excircle
opposite the vertex A. This excircle is tangent to side BC at M , and to lines AB and AC at
K and L, respectively. Lines LM and BJ meet at F , and lines KM and CJ meet at G. Let
S be the point of intersection of lines AF and BC, and let T be the point of intersection of
lines AG and BC. Prove that M is the midpoint of ST
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