In the figure, GHJK is a parallelogram and LJ = LK.
- Find ∠m.
- Find ∠n.
(a)
∠GLH = ∠GHL (Isosceles triangle)
∠m
= 180° - 46° - 46° - 71°
= 17° (Interior angles)
(b)
∠GLH
= 180° - 46° - 46°
= 88° (Angles sum of triangle)
∠n
= 360° - 88°
= 272° (Angles at a point)
Answer(s): (a) 17°; (b) 272°