The figure is not drawn to scale. Find
- ∠f
- ∠g
(a)
∠j
= 180° - 103°
= 77° (Angles on a straight line)
∠i
= 180° - 78° - 77°
= 25° (Angles sum of triangle)
∠i = ∠f (Alternate angles)
(b)
∠h
= 180° - 103°
= 77° (Interior angles)
∠h = ∠g = 77° (Corresponding angles)
Answer(s): (a) 25°; (b) 77°