1. state what the angles are indicated by a letter, giving reasons for your answer
(1)
(2)
(3) c
115o
75o b
119o a
50o
(4)
(5)
(6) d
125o
70o f e
110o

2. (7) (8) (9) 5c d b 4c a 3d (11) (12) (10) 14g 3e 7f 6g 2e 29f
state what the angles are indicated by a letter, giving reasons for your answer
(7)
(8)
(9) 5c d
120o b 4c a
80o 3d
(10)
(11)
(12)
14g 3e 7f 6g 2e
29f

3. 3n 2n

4. n 2n
54o

5. state what the angles are indicated by a letter, giving reasons for your answer
(1)
(2)
(3)
95o
85o b c
125o
82o d e
74o
124o a
(5)
(6)
(4)
70o
130o
45o f
120o
35o
60o h g

6. state what the angles are indicated by a letter, giving reasons for your answer
(7) a b
(8)
(9) c d
32o
52o
125o f e
107o
(11)
(12)
(10) j
110o h
52o
33o g
108o
88o k
148o
60o

7. (1) a
74o
124o

8. (2)
85o
95o c b

9. (3)
not parallel
125o d
82o e

10. (4)
45o
130o f

11. (5)
70o g

12. (6)
120o
60o
35o h