Triangles and Angle Relationships

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

x = 10

x = 20

x = 25

x = 65

x = 10

x = 20

x = 25

x = 65

x = 10

x = 20

x = 25

x = 65

90°, 90°, 90°

80°, 80°, 200°

40°, 50°, 60°

15°, 30°, 135°

Yes

No

I don't know

acute

obtuse

right

straight

supplementary (add up to 180^o)

Vertical Angles (they are congruent)

Corresponding angles (they are congruent)

Complementary angles (add up to 90^o)

-5

8

9

5

139°

66°

138°

116°

47

57

53

133

37

72

108

18

Two angles that share a common ray.

Two angles that are opposite each other.

Two angles that add up to 180.

Two angles that add up to 90.

60

70

50

140

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet

4 - Best - I can teach this

3 - Nearing Mastery - I can do it on my own

2 - Novice - I can do it with some hints

1 - Beginner - I am not there yet