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swat32
3 years ago
7

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
Mathematics
2 answers:
juin [17]3 years ago
7 0

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

kolezko [41]3 years ago
5 0

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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