In the diagram shown, KLM is a right-angled triangle and KL = LM = KN. Find
- ∠NKM
- ∠KNL
(a)
∠KML
= (180° - 90°) ÷ 2
= 45° (Isosceles triangle)
∠NKM
= 45° - 31°
= 14°
(b)
∠KNL
= (180° - 31°) ÷ 2
= 74.5° (Isosceles triangle)
Answer(s): (a) 14°; (b) 74.5°