The figure is not drawn to scale. Find
- ∠c
- ∠d
(a)
∠g
= 180° - 106°
= 74° (Angles on a straight line)
∠f
= 180° - 81° - 74°
= 25° (Angles sum of triangle)
∠f = ∠c (Alternate angles)
(b)
∠e
= 180° - 106°
= 74° (Interior angles)
∠e = ∠d = 74° (Corresponding angles)
Answer(s): (a) 25°; (b) 74°