The figure shows a parallelogram. Find
- ∠g
- ∠f
- ∠e
(a)
∠IMJ
= 180° - 30° - 71°
= 79° (Angles sum of triangle)
∠g = ∠IMJ = 79° (Vertically opposite angles)
(b)
∠f = ∠IHJ = 57° (Alternate angles)
(c)
∠JMI = ∠g = 79° (Vertically opposite angles)
∠e
= 79° - 57°
= 22° (Exterior angle of a triangle)
Answer(s): (a) 79°; (b) 57°; (c) 22°