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rjkz [21]
3 years ago
13

I need help on this question ​

Mathematics
1 answer:
Alona [7]3 years ago
3 0

Answer:

1. equal

2. add to 180

3. equal

4. add to 180

Step-by-step explanation:

as 1 and 3 are linear pairs

2 and 4 are vertically opposite angles

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