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What additional information do you need to prove ... by SAS?

What additional information do you need to prove ... by SAS?-example-1
User Kopper
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Answer: B (∠ACB≅∠ACD)

Explanation:

To prove congruency with SAS, you already have 2 sides, the marked congruent sides (BC≅CD) and AC≅AC because they are a shared side. You just need an included angle inbetween, which is

∠ACB and ∠ACD

User GangstaGraham
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