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Sonbull [250]
3 years ago
9

What’s is the missing justification in the proof ?

Mathematics
2 answers:
Kipish [7]3 years ago
5 0

Answer:

By definition of supplementary angles

Step-by-step explanation:

We have to prove that

\angle 1=\angle 3

We have to find missing justification in the given proof.

Proof:

Segment CD intersect segment AB

Reason: Given

\angle 1+\angle 2=180^{\circ}

\angle 2+\angle 3=180^{\circ}

Reason: By definition of supplementary angles

\angle 1+\angle 2=\angle 2+\angle 3

Reason: Transitive property

\angle 1=\angle 3

Reason: subtraction property of equality

timama [110]3 years ago
3 0
Definition of supplementary angles. Hope this helps. Can you mark me as brainliest if you can? I really appreciate it!
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