The figure is not drawn to scale. Find
- ∠h
- ∠i
(a)
∠m
= 180° - 100°
= 80° (Angles on a straight line)
∠k
= 180° - 81° - 80°
= 19° (Angles sum of triangle)
∠k = ∠h (Alternate angles)
(b)
∠j
= 180° - 100°
= 80° (Interior angles)
∠j = ∠i = 80° (Corresponding angles)
Answer(s): (a) 19°; (b) 80°