Identify the correct two-column proof for this plan. Given: ∠1≅∠3 Prove: ∠2 and ∠3 are supplementary.

Plan: Use the Linear Pair Theorem to show that ∠1 and ∠2 are supplementary. Then use the definition of supplementary angles, congruence, and substitution.

Identify the correct twocolumn proof for this plan Given 13 Prove 2 and 3 are supplementary Plan Use the Linear Pair Theorem to show that 1 and 2 are supplement class=