The figure shows a parallelogram. Find
- ∠e
- ∠d
- ∠c
(a)
∠GJH
= 180° - 32° - 70°
= 78° (Angles sum of triangle)
∠e = ∠GJH = 78° (Vertically opposite angles)
(b)
∠d = ∠GFH = 66° (Alternate angles)
(c)
∠HJG = ∠e = 78° (Vertically opposite angles)
∠c
= 78° - 66°
= 12° (Exterior angle of a triangle)
Answer(s): (a) 78°; (b) 66°; (c) 12°