To complete the proof that lines m and n are parallel (m∥n) given that m∠1 = 115° and m∠2 = 65°, we will organize the statements with the appropriate reasons from your provided list. Here's how the steps can be laid out:
-
Statement: m∠1 = 115°,
Reason: Given. -
Statement: m∠2 = 65°,
Reason: Given. -
Statement: 115° + 65° = 180°,
Reason: Addition. -
Statement: m∠1 + m∠2 = 180°,
Reason: Substitution. -
Statement: ∠1 and ∠2 are supplementary,
Reason: Definition of supplementary angles. -
Statement: m∥n,
Reason: Consecutive Interior Angles Converse Theorem.
So, filling in the correct responses:
- Given
- Given
- Addition
- Substitution
- Definition of supplementary angles
- Consecutive Interior Angles Converse Theorem
This structure demonstrates that since angles 1 and 2 are supplementary, lines m and n must be parallel according to the theorem concerning consecutive interior angles.