Final answer:
To complete the proof, we need to provide reasons for statements 3 and 4. The reason for statement 3 is that vertical angles are equal. The reason for statement 4 is that pqr=srt.
Step-by-step explanation:
To complete the proof, we need to provide reasons for statements 3 and 4.
- Given: q=t and qr=tr
- Reason: vertical angles are equal
- Reason: pqr=srt (from statement 2)
- Reason: pr=sr (from statement 3)