In the figure, CDEF is a parallelogram and GE = GF.
- Find ∠h.
- Find ∠j.
(a)
∠CGD = ∠CDG (Isosceles triangle)
∠h
= 180° - 46° - 46° - 70°
= 18° (Interior angles)
(b)
∠CGD
= 180° - 46° - 46°
= 88° (Angles sum of triangle)
∠j
= 360° - 88°
= 272° (Angles at a point)
Answer(s): (a) 18°; (b) 272°