9/14 Angles and Angle addition

17

21

18

9

angles 5 and 2

angles 2 and 7

angles 3 and 5

angles 6 and 3

angles 1 and 7

angles 3 and 5

angles 4 and 7

angles 3 and 6

angles 4 and 6

angles 1 and 7

angles 3 and 5

angles 3 and 4

angles 1 and 7

angles 1 and 4

angles 6 and 2

angles 4 and 5

angles 3 and 5

angles 6 and 5

angles 1 and 7

angles 4 and 5

90

45

180

100

90

45

180

100

100

180

45

90

congruent

obtuse

supplementary

90 degrees

15

90

-10

8

9

2

3

45

11

7

5

6