Triangle 1 and triangle 3 are similar triangle
From the given figure, we are to determine which of the triangles are congruent.
From the figures, triangle 1 and 3 are congruent according to the SAS theorem which states that if two sides in one triangle are equal to two sides in another triangle and the included angle in both are similar, then the two triangles are similar”.
Learn more on similar triangles here: https://brainly.com/question/27923044
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