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Triangle and
Squares 8. Level: High School, SAT Prep, College
geometry 
Squares ABDE and BCFG are constructed
internally on the sides AB and BC of a triangle ABC, Prove the following:
1. CD and AG are congruent and perpendicular.
2. DC, GA, and EF are concurrent in P.
3. Angles DPE and FPG are both equal to 45 degrees. 


