SWBAT: Recognize complementary and
supplementary angles and prove angles congruent by
means of four new theorems.
1
Given:
Prove:
ABC is a straight angle A
1 is supplementary to 2.
2
B
1.
Statements
Reasons
ABC is a straight angle 1. Given
2.
1 +
3.
2 =
C
ABC
2. Angle Addition Postulate
1 and
2 form a
Linear pair
3. Definition of Linear Pairs
4. 1 is supplementary to
2 4. Linear Pairs form
supplementary angles.