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Geometry 15 Online
OpenStudy (anonymous):

please help

OpenStudy (anonymous):

In the figure below, ∠DEC ≅ DCE, ∠B ≅ ∠F, and segment DF is congruent to segment DB. Point C is the point of intersection between segment AG and segment BD, while point E is the point of intersection between segment AG and segment DF.

OpenStudy (anonymous):

OpenStudy (anonymous):

SSS, SAS, ASA or AAS?

OpenStudy (anonymous):

i do not get this part

OpenStudy (anonymous):

Since DF=DE+EF, DB=DC+CB, DF=DB, DE+EF=DC+CB, then CB=EF angle DCE=angle ACB ( vertical angles) angle DEC=angle GEF (vertical angles) but angle DCE= angle DEC ( given) then angle ACB=angle GEF angle B=angle F ( given) CB=EF (proved) angle ACB= angle GEF ( proved ) then Triangles ABC and GFE are congruent

OpenStudy (anonymous):

i got this far

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