The figure shows a parallelogram. Find
- ∠g
- ∠f
- ∠e
(a)
∠IMJ
= 180° - 42° - 62°
= 76° (Angles sum of triangle)
∠g = ∠IMJ = 76° (Vertically opposite angles)
(b)
∠f = ∠IHJ = 60° (Alternate angles)
(c)
∠JMI = ∠g = 76° (Vertically opposite angles)
∠e
= 76° - 60°
= 16° (Exterior angle of a triangle)
Answer(s): (a) 76°; (b) 60°; (c) 16°