Given that LNPR is a rhombus, calculate
- ∠u
- ∠v
(a)
∠LSR = ∠NST = 111° (Vertically opposite angles)
∠u
= 180° - 111° - 11°
= 58° (Angles sum of triangle)
(b)
∠RPN
= 180° - 11° - 11°
= 158° (Angles sum of triangle)
∠v
= 360° - 111° - 158° - 11°
= 80° (Sum of Angles in a quadrilateral)
Answer(s): (a) 58°; (b) 80°