Type the letter of the correct statement or reason to complete each two-column proof.
| Given: | is an exterior angle of |
| Prove: | and |
Choices:
| a. | |
| b. | |
| c. |
| d. | Whole-Part Inequality |
| e. | Substitution Property of Equality |
| f. | Given |
Proof:
| Statements | Reasons | ||||
|
1.
is an exterior angle of
|
|
||||
|
2. Exterior Angle Theorem
|
||||
and
|
|
