AMC 10A 2026 (Problem 9)
Two similar but not congruent scalene triangles each have a side with length and a side with length . What is the length of the longest side of the larger triangle?
Side in the larger triangle must correspond to a smaller side in the smaller triangle. The only side that can be less than in the smaller triangle is .
Since the triangles are not congruent, side in the larger triangle corresponds to side in the smaller triangle.
(D) 16
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