Answer:
28
Step-by-step explanation:
Add up the angles of the ones given so
40 + 112 = 152 and then subtract by 180 to get the missing angle: 180 - 152 = 28
I hope this helped!
Answer:
120° and 240°
Step-by-step explanation:
The given info about the angle x is cos x = - 1/2.
By definition, cos x = - 1/2 = (adjacent side) / hypotenuse, so here we can assume the adjacent side is -1 and the hypotenuse is 2.
A negative cosine tells us that the angle is in Quadrant II or Quadrant III.
If x is in Quadrant II, then its value is 120°
If x is in Quadrant III, then its value is 120° + 120°, or 240°
Check:
Answer:
a.) x = -1/3
b.) 8
c.) 6
d.) 8
e.) 6
Step-by-step explanation:
