Given that HKLN is a rhombus, calculate
- ∠s
- ∠t
(a)
∠HPN = ∠KPR = 108° (Vertically opposite angles)
∠s
= 180° - 108° - 18°
= 54° (Angles sum of triangle)
(b)
∠NLK
= 180° - 18° - 18°
= 144° (Angles sum of triangle)
∠t
= 360° - 108° - 144° - 18°
= 90° (Sum of Angles in a quadrilateral)
Answer(s): (a) 54°; (b) 90°