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PDB1128
Kaitlyn runs on a triangular track in a local park. On Saturday, she runs one lap around track BAC. The length of each path on this track is shown in meters (m) in the diagram below. Triangles ABC and DEF. AB measures 22 m. DE measures 11 m. DF measures 9 m. EF measures 13 m. If track DEF is similar in shape to track BAC, how many meters, rounded to the nearest tenth, would Violet run in one lap on track BAC? Type the numeric answer only in the box below.
So I see that each side of ABC is twice the corresponding side of DEF . So AC must be 18 and BC must be 26: