2. Remember : Reason: An exterior angle of a triangle is greater than either of its nonadjacent interior angles. 3 1 2 and and Exterior angle theorem

3. StatementReason 1. Given Pg. 3 #15 2. Partition Postulate 3. Substitution postulate 4. A whole is greater than any of its parts

4. StatementReason 1. Given Pg. 3 #16 3. An exterior angle of a triangle is greater than either of its nonadjacent interior angles 4. Substitution postulate of inequalities 2. Angles opposite congruent sides of a triangle are congruent

5. StatementReason 1. Given Pg. 3 #17 3. Partition Postulate 5. Substitution postulate of inequalities 4. A whole is greater than any of its parts 2. Angles opposite congruent sides of a triangle are congruent

6. StatementReason 1. Given Pg. 3 #18 3. An exterior angle of a triangle is greater than either of its nonadjacent interior angles 4. Substitution postulate of inequalities 2. Angles opposite congruent sides of a triangle are congruent

7. StatementReason 1. Given Pg. 3 #19 2. An exterior angle of a triangle is greater than either of its nonadjacent interior angles 3. Substitution postulate of inequalities

8. StatementReason 1. Given 2. An angle bisector divides an angle into two congruent angles 3. An exterior angle of a triangle is greater than either of its nonadjacent interior angles 4. Substitution postulate of inequalities