In Exercises 21 and 22, complete each proof.
Given: 


Prove: 


PROOF  
Statements  Reasons  
1.

1.


2.

2.


3.

3. If two


4.

4.


5.

5.


6.

6.


7.

7. Multiplication Property of Equality. 

8.

8. If two arcs of a


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