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Figure ABCD is a square. Prove BD ≅ AC. Square A B C D with diagonals is shown. Statements Reasons 1. ABCD is a square 1. given 2. ∠DAB, ∠ABC, ∠BCD, and ∠CDA are right angles 2. definition of a square 3. ∠DAB ≅ ∠ABC ≅ ∠BCD ≅ ∠CDA 3. right angles are congruent 4. AB ≅ BC ≅ CD ≅ DA 4.? 5. △BAD ≅ △ABC 5. SAS 6. BD ≅ AC 6. CPCTC What is the missing reason in the proof?

all sides of a square are congruent

all right angles measure 90°

definition of diagonal

definition of perpendicular

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Answers (2)
  1. 24 May, 20:52
    0
    all sides are congruent

    Step-by-step explanation:

    its talking about sides
  2. 24 May, 21:07
    0
    I believe A is correct

    Good luck!
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