Which congruence theorem can be used to prove △ABR ≅ △ACR

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2016-09-22 11:09:29

the answer: according to the figure, the sides of the two triangles △ABR and △ACR have specific congruence. the congruences are: AB≅ BC and AR ≅ CR, these mean that the sides are proportional such triangles are called similar so to prove that △ABR ≅ △ACR , we can use SSS theorem side-side -side Similarity theorem

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