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Triangle Similarity Theorems

Triangle ABC and Triangle PQR are constructed such that the two triangles have the same three angle measures.

Question 1

You can drag vertex A or vertex C in triangle ABC. What do you notice about the ratios of corresponding sides between the two triangles?

Question 2

You can drag vertex P or vertex R in triangle PQR. What do you notice about the ratios of corresponding sides between the two triangles?

Question 3

When moving a vertex of either triangle, what remained the same in each triangle?