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Triangle and
Squares 14. Level: High School, SAT Prep, College
geometry 
Squares ABDE, BCFG,
and ACHJ are
constructed internally on the sides AB, BC, and AC of a triangle ABC.
O is the center of the square ACHJ and M is the midpoint of EF. Prove
the following:
1. AMCO is a square.
2. MD and MG are congruent and perpendicular. 


