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jekas [21]
4 years ago
10

Complete the reasons for the proof.

Mathematics
2 answers:
Darina [25.2K]4 years ago
6 0

2. 2 sides in a line

3. linear (or) supplementary

5. Vertically, equal

6.Substitution

7. alternate exterior angles

storchak [24]4 years ago
3 0

Answer:

see below

Step-by-step explanation:

1.  given

2.  <u>adjacent</u> sides in <u>straight line</u>

3.  definition of <u>supplementary adjacen</u>t angles

4.  substitution

5.  opposite <u>angles</u> are <u>equal</u>

6.  <u>substitution</u>

7.  definition of <u>alternate exterior</u> angles

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