The figure is not drawn to scale. Find
- ∠n
- ∠p
(a)
∠s
= 180° - 102°
= 78° (Angles on a straight line)
∠r
= 180° - 77° - 78°
= 25° (Angles sum of triangle)
∠r = ∠n (Alternate angles)
(b)
∠q
= 180° - 102°
= 78° (Interior angles)
∠q = ∠p = 78° (Corresponding angles)
Answer(s): (a) 25°; (b) 78°