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valentinak56 [21]
3 years ago
14

Please help! I need help with this question!

Mathematics
1 answer:
sineoko [7]3 years ago
3 0

Explanation:

The vertical angles at C are congruent with each other, so we have the necessary conditions to invoke the SAS congruence postulate:

  ∆BCA ≅ ∆ECD

BA ≅ ED by CPCTC (corresponding parts of congruent triangles are congruent)

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