3. The two right triangles below are similar. What is x, the missing side length in triangle DEF? Triangle ABC: A, C, B vertices. Side AC = 5 Side CB = 12 Side AB = 13 Triangle DEF: D, F, E vertices. Side FE = 9 Side DE = x A 3.75 B 9.75 C 10 D 12
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Step 1: Set up the proportion using the sides of the similar triangles: \( \frac{12}{13} = \frac{9}{x} \) Show more…
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