RSTU is a rhombus. RUV is an equilateral triangle. Find
- ∠VRS
- ∠RSU
(a)
∠VRU
= 180° ÷ 3
= 60° (Equilateral triangle)
∠SRU = ∠STU = 114° (Rhombus)
∠VRS
= 114° + 60°
= 174°
(b)
∠RSU
= (180° - 114°) ÷ 2
= 33° (Isosceles triangle)
Answer(s): (a) 174°; (b) 33°