In the figure, ABCD is a parallelogram and EC = ED.
- Find ∠f.
- Find ∠g.
(a)
∠AEB = ∠ABE (Isosceles triangle)
∠f
= 180° - 39° - 39° - 68°
= 34° (Interior angles)
(b)
∠AEB
= 180° - 39° - 39°
= 102° (Angles sum of triangle)
∠g
= 360° - 102°
= 258° (Angles at a point)
Answer(s): (a) 34°; (b) 258°