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Need help with R3, R4, S5​

Need help with R3, R4, S5​-example-1
User Szuflad
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1 Answer

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Answer:

R3 Theorem: If parallel lines are cut by a transversal, then alternate interior angles are congruent.

R4 Theorem: Congruence of segments is reflexive.

S5 ΔABC ≅ ΔCDA

User Gkrish
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