In the figure, GJ is parallel to LK and GM is parallel to HN. GML is a straight line, ∠GMN = 103°. ∠MGH = 103° and the sum of ∠HJK and ∠KLM is 150°. Find
- ∠MNH
- ∠LKJ
(a)
∠MNH
= 180° - 103°
= 77° (Interior angles)
(b)
∠LKJ
= 360° - 150° - 103°
= 107° (Sum of angles in a quadrilateral)
Answer(s): (a) 77°; (b) 107°