Question

Can anyone help me????
Adam's proof: angle 1 + angle 2 + angle 3 + angle 4 = 360°
Therefore, angle 2 + angle 3 = 180° (t is a straight line)
Hence, angle 1 = angle 3 (Transitive Property of Equality)

Darius' proof: angle 1 + angle 4 = 180° (t is a straight line)
angle 1 + angle 2 = 180° (PQ is a straight line)
Therefore, angle 1 + angle 2 = angle 1 + angle 4 (Transitive Property of Equality)
Hence, angle 2 = angle 4 (Subtraction Property of Equality)

Which statement is correct?

Answer 1

Only Adam's proof is correct.
Both Adam's and Darius' proofs are correct.
Both Adam's and Darius' proofs are incorrect.
Only Darius' proof is correct.