Problem 179 of 7
Detect the first invalid claim in congruence proof AB=DE given, BC=EF given, triangle ABC congruent to triangle DEF by SSS.
Using a hint is okay. It just tells the trainer to give you a little more review.
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audit correspondence and criterion use.
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Proof claims must contain one identifiable first invalid step.
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Your answer is equivalent to the expected form.
Walkthrough
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1. Check each proof claim in order.
2. Verify that each claim is supported by givens or prior results.
3. Stop at the first unsupported or misused criterion claim.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Identifying a later consequence before the first unsupported step.