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
|
|