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To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?