Question

Find all missing angles. show your work.

Answer 1

1 51

2. 34

3. 95

4. 38

5. 47

6. 106

7. 59

Answer 2

(I’ll be using the < sign as the angle symbol)

*m<1 = 180 - 129
m<1 = 51

*m<1 + m<2 + 95 = 180
51 + m<2 + 95 = 180
146 + m<2 = 180
m<2 = 180 - 146
m<2 = 34

*m<3 = 95 (opposite by vertex)

*m<3 + m<4 + 47 = 180
95 + m<4 + 47 = 180
142 + m<4 = 180
m<4 = 180 - 142
m<4 = 38

*m<5 = 47 (opposite by vertex)

*m<7 = 180 - 121
m<7 = 59

*m<5 + m<6 + m<7 = 180
47 + m<6 + 59 = 180
m<6 + 106 = 180
m<6 = 180 - 106
m<6 = 74