The figure shows a rectangle KLMN. ∠KNP = 57° and ∠LNM = 42°. Find
- ∠LNP
- ∠KLN
(a)
∠LNP
= 57° + 42° - 90°
= 9° (Overlapping angles)
(b)
∠KNL
= 57° - 9°
= 48° (Overlapping angles)
∠KLN
= 180° - 90° - 48°
= 42° (Angles sum of triangle)
Answer(s): (a) 9°; (b) 42°