Proof: Congruent Triangles to Distance

Let's prove the following theorem:

if △ABC ≅ △DEF, then distance BA = distance ED

A B C D E F

Proof:

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Given
1 △ABC ≅ △DEF
Proof Table
# Claim Reason
1 distance AB = distance DE if △ABC ≅ △DEF, then distance AB = distance DE
2 distance BA = distance ED if distance AB = distance DE, then distance BA = distance ED

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