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Which theorem or postulate proves the two triangles are similar

Which theorem or postulate proves the two triangles are similar-example-1
User Arabia
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2 Answers

4 votes
I believe is SAS theorem because they share 1 side, then a vertical angle, and finally another side

User ACP
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The answer is SA~postulate.
Which theorem or postulate proves the two triangles are similar-example-1
User Djpohly
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