The figure shows a parallelogram. Find
- ∠h
- ∠g
- ∠f
(a)
∠JNK
= 180° - 31° - 79°
= 70° (Angles sum of triangle)
∠h = ∠JNK = 70° (Vertically opposite angles)
(b)
∠g = ∠JIK = 58° (Alternate angles)
(c)
∠KNJ = ∠h = 70° (Vertically opposite angles)
∠f
= 70° - 58°
= 12° (Exterior angle of a triangle)
Answer(s): (a) 70°; (b) 58°; (c) 12°