In the figure, RSTU is a parallelogram and VT = VU.
- Find ∠w.
- Find ∠x.
(a)
∠RVS = ∠RSV (Isosceles triangle)
∠w
= 180° - 48° - 48° - 69°
= 15° (Interior angles)
(b)
∠RVS
= 180° - 48° - 48°
= 84° (Angles sum of triangle)
∠x
= 360° - 84°
= 276° (Angles at a point)
Answer(s): (a) 15°; (b) 276°