Which statement and reason best completes the proof?
Question:
Which statement and reason best completes the proof?
Choices:
- A. m∠1 + m∠3 = 180°
- B. ∠1 is supplementary to ∠4
- C. m∠1 + m∠2 = 180°
- D. ∠3 is supplementary to ∠2
Answer:
C. m∠1 + m∠2 = 180°
Topic: Geometry, Proofs, Angles