I believe it is -20.
Hope that helped you out.
Answer:
12° and 168°
Step-by-step explanation:
If x is the angle, and y is the supplementary angle, then:
x + y = 180
x = y − 156
Solve the system of equations using substitution:
y − 156 + y = 180
2y = 336
y = 168
Plug back into either equation to find x:
x = 12
34 degrees will be your answer
C would be 16 and b would be 8 square root of 3 so the answer would be a
