The figure is not drawn to scale. Find
- ∠f
- ∠g
(a)
∠j
= 180° - 105°
= 75° (Angles on a straight line)
∠i
= 180° - 78° - 75°
= 27° (Angles sum of triangle)
∠i = ∠f (Alternate angles)
(b)
∠h
= 180° - 105°
= 75° (Interior angles)
∠h = ∠g = 75° (Corresponding angles)
Answer(s): (a) 27°; (b) 75°