In the figure, ABCD is a parallelogram and EC = ED.
- Find ∠f.
- Find ∠g.
(a)
∠AEB = ∠ABE (Isosceles triangle)
∠f
= 180° - 48° - 48° - 71°
= 13° (Interior angles)
(b)
∠AEB
= 180° - 48° - 48°
= 84° (Angles sum of triangle)
∠g
= 360° - 84°
= 276° (Angles at a point)
Answer(s): (a) 13°; (b) 276°