Janet is designing a frame for a client. She wants to prove to her client that m∠1 = m∠3 in her sketch. What is the missing just ification in the proof? Segment CD intersects segment AB, creating angles 1, 2, 3, and 4. Statement Justification Segment CD intersects segment AB Given ∠1 + ∠ 2 = 180° ∠ 2 + ∠3 = 180° ∠1 + ∠ 2 = ∠ 2 + ∠3 Transitive Property ∠1 = ∠3 Subtraction Property Definition of Supplementary Angles Intersecting Lines Postulate Same-Side Interior Angles Theorem Vertical Angles Theorem
2 answers:
Answer:
Definition of supplementary angles
Step-by-step explanation:
The definition of supplementary angles is:
∠a + ∠b = 180°.
Hence, the answer is the definition of supplementary angles
Answer: Vertical Angles Theorem
Step-by-step explanation: the diagram is like an X which two opposite sides are congruent. if that makes sense hope i helped ❤️.
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Step-by-step explanation:
